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java.lang.Objectorg.hsqldb.jdbc.jdbcResultSetpublic class jdbcResultSetextends java.lang.Objectimplements ResultSetResultSet object maintains a cursor pointing
to its current row of data. Initially the cursor is positioned
before the first row. The next method moves the
cursor to the next row, and because it returns false
when there are no more rows in the ResultSet object,
it can be used in a while loop to iterate through
the result set.
A default ResultSet object is not updatable and
has a cursor that moves forward only. Thus, you can
iterate through it only once and only from the first row to the
last row. It is possible to
produce ResultSet objects that are scrollable and/or
updatable. The following code fragment, in which con
is a valid Connection object, illustrates how to make
a result set that is scrollable and insensitive to updates by others,
and that is updatable. See ResultSet fields for other
options.
Statement stmt = con.createStatement(
ResultSet.TYPE_SCROLL_INSENSITIVE,
ResultSet.CONCUR_UPDATABLE);
ResultSet rs = stmt.executeQuery("SELECT a, b FROM TABLE2");
// rs will be scrollable, will not show changes made by others,
// and will be updatable
The ResultSet interface provides
getter methods (getBoolean, getLong,
and so on) for retrieving column values from the current row.
Values can be retrieved using either the index number of the
column or the name of the column. In general, using the
column index will be more efficient. Columns are numbered from 1.
For maximum portability, result set columns within each row should be
read in left-to-right order, and each column should be read only once.
For the getter methods, a JDBC driver attempts
to convert the underlying data to the Java type specified in the
getter method and returns a suitable Java value. The JDBC specification
has a table showing the allowable mappings from SQL types to Java types
that can be used by the ResultSet getter methods.
Column names used as input to getter methods are case
insensitive. When a getter method is called with
a column name and several columns have the same name,
the value of the first matching column will be returned.
The column name option is
designed to be used when column names are used in the SQL
query that generated the result set.
For columns that are NOT explicitly named in the query, it
is best to use column numbers. If column names are used, there is
no way for the programmer to guarantee that they actually refer to
the intended columns.
A set of updater methods were added to this interface
in the JDBC 2.0 API (JavaTM 2 SDK,
Standard Edition, version 1.2). The comments regarding parameters
to the getter methods also apply to parameters to the
updater methods.
The updater methods may be used in two ways:
ResultSet object, the cursor can be moved backwards
and forwards, to an absolute position, or to a position
relative to the current row.
The following code fragment updates the NAME column
in the fifth row of the ResultSet object
rs and then uses the method updateRow
to update the data source table from which rs was
derived.
rs.absolute(5); // moves the cursor to the fifth row of rs
rs.updateString("NAME", "AINSWORTH"); // updates the
// NAME column of row 5 to be AINSWORTH
rs.updateRow(); // updates the row in the data source
ResultSet object has a special row associated with
it that serves as a staging area for building a row to be inserted.
The following code fragment moves the cursor to the insert row, builds
a three-column row, and inserts it into rs and into
the data source table using the method insertRow.
rs.moveToInsertRow(); // moves cursor to the insert row rs.updateString(1, "AINSWORTH"); // updates the // first column of the insert row to beAINSWORTHrs.updateInt(2,35); // updates the second column to be35rs.updateBoolean(3, true); // updates the third row totruers.insertRow(); rs.moveToCurrentRow();
ResultSet object is automatically closed when the
Statement object that
generated it is closed, re-executed, or used
to retrieve the next result from a sequence of multiple results.
The number, types and properties of a ResultSet
object's columns are provided by the ResulSetMetaData
object returned by the ResultSet.getMetaData method.
<!-- end generic documentation -->
<!-- start release-specific documentation -->
ResultSet object generated by HSQLDB is by default of
ResultSet.TYPE_FORWARD_ONLY (as is standard JDBC behavior)
and does not allow the use of absolute and relative positioning
methods. However, since 1.7.0, if a statement is created
with:
Statement stmt = conn.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE, ResultSet.CONCUR_READ_ONLY);then the
ResultSet objects it produces support
using all of the absolute and relative positioning methods of JDBC2
to set the position of the current row, for example:
rs.absolute(5); String fifthRowValue = rs.getString(1); rs.relative(4); String ninthRowValue = rs.getString(1);Note: An HSQLDB
ResultSet object persists, even after its
connection is closed. This is regardless of the operational mode of
the Database from which it came. That is, they
persist whether originating from a Server,
WebServer or in-process mode Database.
Including HSQLDB 1.7.2, there is no support for any of the methods
introduced in JDBC 2 relating to updateable result sets. These methods
include all updateXXX methods, as well as the insertRow(),
updateRow(), deleteRow(), moveToInsertRow() (and so on)
methods; invoking any such method throws an SQLException
stating that the operation is not supported.
JRE 1.1.x Notes:
In general, JDBC 2 support requires Java 1.2 and above, and JDBC 3 requires
Java 1.4 and above. In HSQLDB, support for methods introduced in different
versions of JDBC depends on the JDK version used for compiling and building
HSQLDB.
Since 1.7.0, it is possible to build the product so that
all JDBC 2 methods can be called while executing under the version 1.1.x
Java Runtime EnvironmentTM.
However, some of these method calls require int values that
are defined only in the JDBC 2 or greater version of the
ResultSet interface. For this reason, when the
product is compiled under JDK 1.1.x, these values are defined here, in this
class.
In a JRE 1.1.x environment, calling JDBC 2 methods that take or return the
JDBC2-only ResultSet values can be achieved by referring
to them in parameter specifications and return value comparisons,
respectively, as follows:
jdbcResultSet.FETCH_FORWARD jdbcResultSet.TYPE_FORWARD_ONLY jdbcResultSet.TYPE_SCROLL_INSENSITIVE jdbcResultSet.CONCUR_READ_ONLY // etc.However, please note that code written in such a manner will not be compatible for use with other JDBC 2 drivers, since they expect and use
ResultSet, rather than jdbcResultSet. Also
note, this feature is offered solely as a convenience to developers
who must work under JDK 1.1.x due to operating constraints, yet wish to
use some of the more advanced features available under the JDBC 2
specification.
(fredt@users) jdbcStatement.executeQuery(String), jdbcStatement.getResultSet(),
ResultSetMetaData
Extensively rewritten and extended in successive versions of HSQLDB.Field Summary | |
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org.hsqldb.Result |
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Method Summary | |
boolean |
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void |
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int |
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boolean |
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Array |
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java.io.InputStream |
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java.io.InputStream |
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BigDecimal |
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BigDecimal |
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BigDecimal |
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BigDecimal |
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java.io.InputStream |
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java.io.InputStream |
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Blob |
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Blob |
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boolean |
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boolean |
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byte |
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byte |
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byte[] |
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java.io.Reader |
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int |
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String |
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Date |
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int |
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float |
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ResultSetMetaData |
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Statement |
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String |
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Time |
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Time |
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Time |
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Timestamp |
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Timestamp |
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Timestamp |
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Timestamp |
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int |
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java.net.URL |
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java.net.URL |
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java.io.InputStream |
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java.io.InputStream |
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SQLWarning |
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public static final int CLOSE_CURSORS_AT_COMMIT
Copy of java.sql.ResultSet constant, for JDK 1.1 clients.
- Field Value:
- 2
public static final int CONCUR_READ_ONLY
Copy of java.sql.ResultSet constant, for JDK 1.1 clients.
- Field Value:
- 1007
public static final int CONCUR_UPDATABLE
Copy of java.sql.ResultSet constant, for JDK 1.1 clients.
- Field Value:
- 1008
public static final int FETCH_FORWARD
Copy of java.sql.ResultSet constant, for JDK 1.1 clients.
- Field Value:
- 1000
public static final int FETCH_REVERSE
Copy of java.sql.ResultSet constant, for JDK 1.1 clients.
- Field Value:
- 1001
public static final int FETCH_UNKNOWN
Copy of java.sql.ResultSet constant, for JDK 1.1 clients.
- Field Value:
- 1002
public static final int HOLD_CURSORS_OVER_COMMIT
Copy of java.sql.ResultSet constant, for JDK 1.1 clients.
- Field Value:
- 1
public static final int TYPE_FORWARD_ONLY
Copy of java.sql.ResultSet constant, for JDK 1.1 clients.
- Field Value:
- 1003
public static final int TYPE_SCROLL_INSENSITIVE
Copy of java.sql.ResultSet constant, for JDK 1.1 clients.
- Field Value:
- 1004
public static final int TYPE_SCROLL_SENSITIVE
Copy of java.sql.ResultSet constant, for JDK 1.1 clients.
- Field Value:
- 1005
public org.hsqldb.Result rResult
The internal representation.
public boolean absolute(int row)
throws SQLException<!-- start generic documentation --> Moves the cursor to the given row number in thisResultSetobject. If the row number is positive, the cursor moves to the given row number with respect to the beginning of the result set. The first row is row 1, the second is row 2, and so on. If the given row number is negative, the cursor moves to an absolute row position with respect to the end of the result set. For example, calling the methodabsolute(-1)positions the cursor on the last row; calling the methodabsolute(-2)moves the cursor to the next-to-last row, and so on. An attempt to position the cursor beyond the first/last row in the result set leaves the cursor before the first row or after the last row. Note: Callingabsolute(1)is the same as callingfirst(). Callingabsolute(-1)is the same as callinglast(). <!-- end generic documentation -->
- Parameters:
row- the number of the row to which the cursor should move. A positive number indicates the row number counting from the beginning of the result set; a negative number indicates the row number counting from the end of the result set
- Returns:
trueif the cursor is on the result set;falseotherwise
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void afterLast()
throws SQLException<!-- start generic documentation --> Moves the cursor to the end of thisResultSetobject, just after the last row. This method has no effect if the result set contains no rows. <!-- end generic documentation -->
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void beforeFirst()
throws SQLException<!-- start generic documentation --> Moves the cursor to the front of thisResultSetobject, just before the first row. This method has no effect if the result set contains no rows. <!-- end generic documentation -->
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void cancelRowUpdates()
throws SQLException<!-- start generic documentation --> Cancels the updates made to the current row in thisResultSetobject. This method may be called after calling an updater method(s) and before calling the methodupdateRowto roll back the updates made to a row. If no updates have been made orupdateRowhas already been called, this method has no effect. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void clearWarnings()
throws SQLException<!-- start generic documentation --> Clears all warnings reported on thisResultSetobject. After this method is called, the methodgetWarningsreturnsnulluntil a new warning is reported for thisResultSetobject. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.1, HSQLDB does not produceSQLWarningobjects on any ResultSet object warning chain; calls to this method are ignored.
public void close()
throws SQLException<!-- start generic documentation --> Releases thisResultSetobject's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed. Note: AResultSetobject is automatically closed by theStatementobject that generated it when thatStatementobject is closed, re-executed, or is used to retrieve the next result from a sequence of multiple results. AResultSetobject is also automatically closed when it is garbage collected. <!-- end generic documentation -->
public void deleteRow()
throws SQLException<!-- start generic documentation --> Deletes the current row from thisResultSetobject and from the underlying database. This method cannot be called when the cursor is on the insert row. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public int findColumn(String columnName)
throws SQLException<!-- start generic documentation --> Maps the givenResultSetcolumn name to itsResultSetcolumn index. <!-- end generic documentation -->
- Parameters:
columnName- the name of the column
- Returns:
- the column index of the given column name
public boolean first()
throws SQLException<!-- start generic documentation --> Moves the cursor to the first row in thisResultSetobject. <!-- end generic documentation -->
- Returns:
trueif the cursor is on a valid row;falseif there are no rows in the result set
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public Array getArray(String colName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as anArrayobject in the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support this feature. This method always throws anSQLExceptionstating that the operation is not supported.
- Parameters:
colName- the name of the column from which to retrieve the value
- Returns:
- an
Arrayobject representing the SQLARRAYvalue in the specified column
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public Array getArray(int i)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as anArrayobject in the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support this feature. This method always throws anSQLExceptionstating that the operation is not supported.
- Parameters:
i- the first column is 1, the second is 2, ...
- Returns:
- an
Arrayobject representing the SQLARRAYvalue in the specified column
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public java.io.InputStream getAsciiStream(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as a stream of ASCII characters. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving largeLONGVARCHARvalues. The JDBC driver will do any necessary conversion from the database format into ASCII. Note: All the data in the returned stream must be read prior to getting the value of any other column. The next call to a getter method implicitly closes the stream. Also, a stream may return0when the methodavailableis called whether there is data available or not. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- a Java input stream that delivers the database column value as a stream of one-byte ASCII characters. If the value is SQL
NULL, the value returned isnull.
- See Also:
getAsciiStream(int)
public java.io.InputStream getAsciiStream(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as a stream of ASCII characters. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving largeLONGVARCHAR values. The JDBC driver will do any necessary conversion from the database format into ASCII. Note: All the data in the returned stream must be read prior to getting the value of any other column. The next call to a getter method implicitly closes the stream. Also, a stream may return0when the methodInputStream.availableis called whether there is data available or not. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
The limitation noted above does not apply to HSQLDB. In 1.6.1 and previous, getAsciiStream was identical to getUnicodeStream and both simply returned a byte stream constructed from the rawgetBytesrepresentation. Starting with 1.7.0, this has been updated to comply with the java.sql specification. When the column is of type CHAR and its variations, it requires no conversion since it is represented internally already as a Java String object. When the column is not of type CHAR and its variations, the returned stream is based on a conversion to the JavaStringrepresentation of the value. In either case, the obtained stream is always equivalent to a stream of the low order bytes from the value's String representation. HSQLDB SQLCHARand its variations are all Unicode strings internally, so the recommended alternatives to this method aregetString,getUnicodeStream(deprecated) and new to 1.7.0:getCharacterStream(now prefered over the deprecated getUnicodeStream alternative).
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- a Java input stream that delivers the database column value as a stream of one-byte ASCII characters; if the value is SQL
NULL, the value returned isnull
public BigDecimal getBigDecimal(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.math.BigDecimalwith full precision. <!-- end generic documentation -->
- Parameters:
columnName- the column name
- Returns:
- the column value (full precision); if the value is SQL
NULL, the value returned isnullin the Java programming language.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public BigDecimal getBigDecimal(String columnName,
int scale)
throws SQLExceptionDeprecated. by java.sun.com as of JDK 1.2
<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.math.BigDecimalin the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Beginning with 1.7.0, HSQLDB converts the result and sets the scale with BigDecimal.ROUND_HALF_DOWN.
- Parameters:
columnName- the SQL name of the columnscale- the number of digits to the right of the decimal point
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public BigDecimal getBigDecimal(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.math.BigDecimalwith full precision. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value (full precision); if the value is SQL
NULL, the value returned isnullin the Java programming language.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public BigDecimal getBigDecimal(int columnIndex,
int scale)
throws SQLExceptionDeprecated. by java.sun.com as of JDK 1.2
<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.BigDecimalin the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Beginning with 1.7.0, HSQLDB converts the result and sets the scale with BigDecimal.ROUND_HALF_DOWN.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...scale- the number of digits to the right of the decimal point
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public java.io.InputStream getBinaryStream(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as a stream of uninterpretedbytes. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving largeLONGVARBINARYvalues. Note: All the data in the returned stream must be read prior to getting the value of any other column. The next call to a getter method implicitly closes the stream. Also, a stream may return0when the methodavailableis called whether there is data available or not. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- a Java input stream that delivers the database column value as a stream of uninterpreted bytes; if the value is SQL
NULL, the result isnull
public java.io.InputStream getBinaryStream(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as a binary stream of uninterpreted bytes. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving largeLONGVARBINARYvalues. Note: All the data in the returned stream must be read prior to getting the value of any other column. The next call to a getter method implicitly closes the stream. Also, a stream may return0when the methodInputStream.availableis called whether there is data available or not. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- a Java input stream that delivers the database column value as a stream of uninterpreted bytes; if the value is SQL
NULL, the value returned isnull
public Blob getBlob(String colName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as aBlobobject in the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Starting with 1.7.2, this feature is supported.
- Parameters:
colName- the name of the column from which to retrieve the value
- Returns:
- a
Blobobject representing the SQLBLOBvalue in the specified column
- Since:
- JDK 1.2
public Blob getBlob(int i)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as aBlobobject in the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Starting with 1.7.2, this feature is supported.
- Parameters:
i- the first column is 1, the second is 2, ...
- Returns:
- a
Blobobject representing the SQLBLOBvalue in the specified column
- Since:
- JDK 1.2
public boolean getBoolean(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as abooleanin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned isfalse
public boolean getBoolean(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as abooleanin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned isfalse
public byte getByte(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as abytein the Java programming language. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public byte getByte(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as abytein the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public byte[] getBytes(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as abytearray in the Java programming language. The bytes represent the raw values returned by the driver. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public byte[] getBytes(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as abytearray in the Java programming language. The bytes represent the raw values returned by the driver. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
HSQLDB returns correct values for columns of typeBINARY,CHARand their variations. For other types, it returns thebyte[]for theStringrepresentation of the value.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public java.io.Reader getCharacterStream(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.io.Readerobject. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Starting with 1.7.0, HSQLDB supports this.
- Parameters:
columnName- the name of the column
- Returns:
- a
java.io.Readerobject that contains the column value; if the value is SQLNULL, the value returned isnullin the Java programming language
- Since:
- JDK 1.2
public java.io.Reader getCharacterStream(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.io.Readerobject. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Starting with 1.7.0. HSQLDB supports this.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- a
java.io.Readerobject that contains the column value; if the value is SQLNULL, the value returned isnullin the Java programming language.
- Since:
- JDK 1.2
public Clob getClob(String colName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as aClobobject in the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Starting with 1.7.2, this feature is supported.
- Parameters:
colName- the name of the column from which to retrieve the value
- Returns:
- a
Clobobject representing the SQLCLOBvalue in the specified column
- Since:
- JDK 1.2
public Clob getClob(int i)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as aClobobject in the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Starting with 1.7.2, this feature is supported.
- Parameters:
i- the first column is 1, the second is 2, ...
- Returns:
- a
Clobobject representing the SQLCLOBvalue in the specified column
- Since:
- JDK 1.2
public int getConcurrency()
throws SQLException<!-- start generic documentation --> Retrieves the concurrency mode of thisResultSetobject. The concurrency used is determined by theStatementobject that created the result set. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB supports onlyCONCUR_READ_ONLY; this method always returnsCONCUR_READ_ONLY.
- Returns:
- the concurrency type, either
ResultSet.CONCUR_READ_ONLYorResultSet.CONCUR_UPDATABLE
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public String getCursorName()
throws SQLException<!-- start generic documentation --> Retrieves the name of the SQL cursor used by thisResultSetobject. In SQL, a result table is retrieved through a cursor that is named. The current row of a result set can be updated or deleted using a positioned update/delete statement that references the cursor name. To insure that the cursor has the proper isolation level to support update, the cursor'sSELECTstatement should be of the formSELECT FOR UPDATE. IfFOR UPDATEis omitted, the positioned updates may fail. The JDBC API supports this SQL feature by providing the name of the SQL cursor used by aResultSetobject. The current row of aResultSetobject is also the current row of this SQL cursor. Note: If positioned update is not supported, aSQLExceptionis thrown. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support this feature. Calling this method always throws anSQLException, stating that the operation is not supported.
- Returns:
- the SQL name for this
ResultSetobject's cursor
public Date getDate(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Dateobject in the Java programming language. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public Date getDate(String columnName,
Calendar cal)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Dateobject in the Java programming language. This method uses the given calendar to construct an appropriate millisecond value for the date if the underlying database does not store timezone information. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column from which to retrieve the valuecal- thejava.util.Calendarobject to use in constructing the date
- Returns:
- the column value as a
java.sql.Dateobject; if the value is SQLNULL, the value returned isnullin the Java programming language
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public Date getDate(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Dateobject in the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public Date getDate(int columnIndex,
Calendar cal)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Dateobject in the Java programming language. This method uses the given calendar to construct an appropriate millisecond value for the date if the underlying database does not store timezone information. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...cal- thejava.util.Calendarobject to use in constructing the date
- Returns:
- the column value as a
java.sql.Dateobject; if the value is SQLNULL, the value returned isnullin the Java programming language
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public double getDouble(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as adoublein the Java programming language. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public double getDouble(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as adoublein the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public int getFetchDirection()
throws SQLException<!-- start generic documentation --> Retrieves the fetch direction for thisResultSetobject. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB builds and returns result sets as a whole; this method always returnsFETCH_FORWARD, but the value has no real meaning.
- Returns:
- the current fetch direction for this
ResultSetobject
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
- See Also:
setFetchDirection(int)
public int getFetchSize()
throws SQLException<!-- start generic documentation --> Retrieves the fetch size for thisResultSetobject. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB builds and returns result sets as a whole; the value returned (always 1) has no significance.
- Returns:
- the current fetch size for this
ResultSetobject
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public float getFloat(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as afloatin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public float getFloat(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as afloatin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public int getInt(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as anintin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public int getInt(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as anintin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public long getLong(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as alongin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public long getLong(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as alongin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public ResultSetMetaData getMetaData()
throws SQLException<!-- start generic documentation --> Retrieves the number, types and properties of thisResultSetobject's columns. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Example: The following code fragment creates aResultSetobject rs, creates aResultSetMetaDataobject rsmd, and uses rsmd to find out how many columns rs has and whether the first column in rs can be used in aWHEREclause.ResultSet rs = stmt.executeQuery("SELECT a, b, c FROM TABLE2"); ResultSetMetaData rsmd = rs.getMetaData();
int numberOfColumns = rsmd.getColumnCount();
boolean b = rsmd.isSearchable(1);
Warning: Including 1.7.1, HSQLDB did not generate accurateResultSetMetaData. Below were the the most important methods to consider:
- isAutoIncrement(int) always returned
false- isCurrency(int) always returned
false- isNullable(int) always returned
columnNullableUnknown- getColumnDisplaySize(int) returned zero for all valid column numbers
- getSchemaName(int) always returned ""
- getPrecision(int) always returned zero
- getScale(int) always returned zero
- getCatalogName(int) always returned ""
Starting with 1.7.2, ResultSetMetaData has been split out into its own interface implemenation (jdbcResultSetMetaData), support has been improved considerably for a number of methods and behaviour has been altered slightly in many areas.
- Returns:
- the description of this
ResultSetobject's columns
- See Also:
jdbcResultSetMetaData
public Object getObject(String columnName)
throws SQLException<!-- start generic documentation --> Gets the value of the designated column in the current row of thisResultSetobject as anObjectin the Java programming language. This method will return the value of the given column as a Java object. The type of the Java object will be the default Java object type corresponding to the column's SQL type, following the mapping for built-in types specified in the JDBC specification. If the value is an SQLNULL, the driver returns a Javanull. This method may also be used to read datatabase-specific abstract data types. In the JDBC 2.0 API, the behavior of the methodgetObjectis extended to materialize data of SQL user-defined types. When a column contains a structured or distinct value, the behavior of this method is as if it were a call to:getObject(columnIndex, this.getStatement().getConnection().getTypeMap()). <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- a
java.lang.Objectholding the column value
public Object getObject(String colName,
Map map)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as anObjectin the Java programming language. If the value is an SQLNULL, the driver returns a Javanull. This method uses the specifiedMapobject for custom mapping if appropriate. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support this feature. This method always throws anSQLExceptionstating that the operation is not supported.
- Parameters:
colName- the name of the column from which to retrieve the valuemap- ajava.util.Mapobject that contains the mapping from SQL type names to classes in the Java programming language
- Returns:
- an
Objectrepresenting the SQL value in the specified column
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public Object getObject(int columnIndex)
throws SQLException<!-- start generic documentation --> Gets the value of the designated column in the current row of thisResultSetobject as anObjectin the Java programming language. This method will return the value of the given column as a Java object. The type of the Java object will be the default Java object type corresponding to the column's SQL type, following the mapping for built-in types specified in the JDBC specification. If the value is an SQLNULL, the driver returns a Javanull. This method may also be used to read datatabase-specific abstract data types. In the JDBC 2.0 API, the behavior of methodgetObjectis extended to materialize data of SQL user-defined types. When a column contains a structured or distinct value, the behavior of this method is as if it were a call to:getObject(columnIndex, this.getStatement().getConnection().getTypeMap()). <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- a
java.lang.Objectholding the column value
public Object getObject(int i,
Map map)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as anObjectin the Java programming language. If the value is an SQLNULL, the driver returns a Javanull. This method uses the givenMapobject for the custom mapping of the SQL structured or distinct type that is being retrieved. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support this feature. This method always throws anSQLException, stating that the operation is not supported.
- Parameters:
i- the first column is 1, the second is 2, ...map- ajava.util.Mapobject that contains the mapping from SQL type names to classes in the Java programming language
- Returns:
- an
Objectin the Java programming language representing the SQL value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public Ref getRef(String colName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as aRefobject in the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support this feature. This method always throws anSQLException, stating that the operartion is not supported.
- Parameters:
colName- the column name
- Returns:
- a
Refobject representing the SQLREFvalue in the specified column
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public Ref getRef(int i)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as aRefobject in the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support this feature. This method always throws anSQLExceptionstating that the operation is not supported.
- Parameters:
i- the first column is 1, the second is 2, ...
- Returns:
- a
Refobject representing an SQLREFvalue
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public int getRow()
throws SQLException<!-- start generic documentation --> Retrieves the current row number. The first row is number 1, the second number 2, and so on. <!-- end generic documentation -->
- Returns:
- the current row number;
0if there is no current row
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public short getShort(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ashortin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public short getShort(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ashortin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned is0
public Statement getStatement()
throws SQLException<!-- start generic documentation --> Retrieves theStatementobject that produced thisResultSetobject. If the result set was generated some other way, such as by aDatabaseMetaDatamethod, this method returnsnull. <!-- end generic documentation -->
- Returns:
- the
Statmentobject that produced thisResultSetobject ornullif the result set was produced some other way
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public String getString(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as aStringin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public String getString(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as aStringin the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public Time getTime(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Timeobject in the Java programming language. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public Time getTime(String columnName,
Calendar cal)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Timeobject in the Java programming language. This method uses the given calendar to construct an appropriate millisecond value for the time if the underlying database does not store timezone information. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the columncal- thejava.util.Calendarobject to use in constructing the time
- Returns:
- the column value as a
java.sql.Timeobject; if the value is SQLNULL, the value returned isnullin the Java programming language
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public Time getTime(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Timeobject in the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public Time getTime(int columnIndex,
Calendar cal)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Timeobject in the Java programming language. This method uses the given calendar to construct an appropriate millisecond value for the time if the underlying database does not store timezone information. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...cal- thejava.util.Calendarobject to use in constructing the time
- Returns:
- the column value as a
java.sql.Timeobject; if the value is SQLNULL, the value returned isnullin the Java programming language
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public Timestamp getTimestamp(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Timestampobject. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public Timestamp getTimestamp(String columnName,
Calendar cal)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Timestampobject in the Java programming language. This method uses the given calendar to construct an appropriate millisecond value for the timestamp if the underlying database does not store timezone information. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the columncal- thejava.util.Calendarobject to use in constructing the date
- Returns:
- the column value as a
java.sql.Timestampobject; if the value is SQLNULL, the value returned isnullin the Java programming language
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public Timestamp getTimestamp(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Timestampobject in the Java programming language. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- the column value; if the value is SQL
NULL, the value returned isnull
public Timestamp getTimestamp(int columnIndex,
Calendar cal)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.sql.Timestampobject in the Java programming anguage. This method uses the given calendar to construct an appropriate millisecond value for the timestamp if the underlying database does not store timezone information. <!-- end generic documentation -->
- Parameters:
columnIndex- the first column is 1, the second is 2, ...cal- thejava.util.Calendarobject to use in constructing the timestamp
- Returns:
- the column value as a
java.sql.Timestampobject; if the value is SQLNULL, the value returned isnullin the Java programming language
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public int getType()
throws SQLException<!-- start generic documentation --> Retrieves the type of thisResultSetobject. The type is determined by theStatementobject that created the result set. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support and thus never returnsResultSet.TYPE_SCROLL_SENSITIVE.
- Returns:
ResultSet.TYPE_FORWARD_ONLY,ResultSet.TYPE_SCROLL_INSENSITIVE, orResultSet.TYPE_SCROLL_SENSITIVE(not supported)
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public java.net.URL getURL(String columnName)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.net.URLobject in the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support this feature. This method always throws anSQLExceptionstating that the operation is not supported.
- Parameters:
columnName- the SQL name of the column
- Returns:
- the column value as a
java.net.URLobject; if the value is SQLNULL, the value returned isnullin the Java programming language
- Since:
- JDK 1.4, HSQLDB 1.7.0
public java.net.URL getURL(int columnIndex)
throws SQLException<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as ajava.net.URLobject in the Java programming language. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support this feature. This method always throws anSQLExceptionstating that the operation is not supported.
- Parameters:
columnIndex- the index of the column 1 is the first, 2 is the second,...
- Returns:
- the column value as a
java.net.URLobject; if the value is SQLNULL, the value returned isnullin the Java programming language
- Since:
- JDK 1.4, HSQLDB 1.7.0
public java.io.InputStream getUnicodeStream(String columnName)
throws SQLExceptionDeprecated. use
getCharacterStreaminstead<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as a stream of two-byte Unicode characters. The first byte is the high byte; the second byte is the low byte. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving largeLONGVARCHARvalues. The JDBC technology-enabled driver will do any necessary conversion from the database format into Unicode. Note: All the data in the returned stream must be read prior to getting the value of any other column. The next call to a getter method implicitly closes the stream. Also, a stream may return0when the methodInputStream.availableis called, whether there is data available or not. <!-- end generic documentation -->
- Parameters:
columnName- the SQL name of the column
- Returns:
- a Java input stream that delivers the database column value as a stream of two-byte Unicode characters. If the value is SQL
NULL, the value returned isnull.
- See Also:
getUnicodeStream(int)
public java.io.InputStream getUnicodeStream(int columnIndex)
throws SQLExceptionDeprecated. use
getCharacterStreamin place ofgetUnicodeStream<!-- start generic documentation --> Retrieves the value of the designated column in the current row of thisResultSetobject as as a stream of two-byte Unicode characters. The first byte is the high byte; the second byte is the low byte. The value can then be read in chunks from the stream. This method is particularly suitable for retrieving largeLONGVARCHARvalues. The JDBC driver will do any necessary conversion from the database format into Unicode. Note: All the data in the returned stream must be read prior to getting the value of any other column. The next call to a getter method implicitly closes the stream. Also, a stream may return0when the methodInputStream.availableis called, whether there is data available or not. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
The limitation noted above does not apply to HSQLDB. Up to and including 1.6.1, getUnicodeStream (and getAsciiStream) both simply returned a byte stream constructed from the rawgetBytesrepresentation. Starting with 1.7.0, this has been corrected to comply with the java.sql specification. When the column is of type CHAR and its variations, it requires no conversion since it is represented internally already as Java Strings. When the column is not of type CHAR and its variations, the returned stream is based on a conversion to the JavaStringrepresentation of the value. In either case, the obtained stream is always equivalent to a stream of bytes from the value's String representation, with high-byte first.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Returns:
- a Java input stream that delivers the database column value as a stream of two-byte Unicode characters; if the value is SQL
NULL, the value returned isnull
public SQLWarning getWarnings()
throws SQLException<!-- start generic documentation --> Retrieves the first warning reported by calls on thisResultSetobject. Subsequent warnings on thisResultSetobject will be chained to theSQLWarningobject that this method returns. The warning chain is automatically cleared each time a new row is read. This method may not be called on aResultSetobject that has been closed; doing so will cause anSQLExceptionto be thrown. Note: This warning chain only covers warnings caused byResultSetmethods. Any warning caused byStatementmethods (such as reading OUT parameters) will be chained on theStatementobject. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Up to and including 1.7.1, HSQLDB does not produceSQLWarningobjects. This method always returnsnull.
- Returns:
- the first
SQLWarningobject reported ornullif there are none Up to and including 1.7.1, HSQLDB always returns null.
public void insertRow()
throws SQLException<!-- start generic documentation --> Inserts the contents of the insert row into thisResultSetobject and into the database. The cursor must be on the insert row when this method is called. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public boolean isAfterLast()
throws SQLException<!-- start generic documentation --> Retrieves whether the cursor is after the last row in thisResultSetobject. <!-- end generic documentation -->
- Returns:
trueif the cursor is after the last row;falseif the cursor is at any other position or the result set contains no rows
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public boolean isBeforeFirst()
throws SQLException<!-- start generic documentation --> Retrieves whether the cursor is before the first row in thisResultSetobject. <!-- end generic documentation -->
- Returns:
trueif the cursor is before the first row;falseif the cursor is at any other position or the result set contains no rows
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public boolean isFirst()
throws SQLException<!-- start generic documentation --> Retrieves whether the cursor is on the first row of thisResultSetobject. <!-- end generic documentation -->
- Returns:
trueif the cursor is on the first row;falseotherwise
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public boolean isLast()
throws SQLException<!-- start generic documentation --> Retrieves whether the cursor is on the last row of thisResultSetobject. Note: Calling the methodisLastmay be expensive because the JDBC driver might need to fetch ahead one row in order to determine whether the current row is the last row in the result set. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, this method is not terribly expensive; the entire result is fetched internally before this object is returned to a caller.
- Returns:
trueif the cursor is on the last row;falseotherwise
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public boolean last()
throws SQLException<!-- start generic documentation --> Moves the cursor to the last row in thisResultSetobject. <!-- end generic documentation -->
- Returns:
trueif the cursor is on a valid row;falseif there are no rows in the result set
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void moveToCurrentRow()
throws SQLException<!-- start generic documentation --> Moves the cursor to the remembered cursor position, usually the current row. This method has no effect if the cursor is not on the insert row. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method is ignored.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void moveToInsertRow()
throws SQLException<!-- start generic documentation --> Moves the cursor to the insert row. The current cursor position is remembered while the cursor is positioned on the insert row. The insert row is a special row associated with an updatable result set. It is essentially a buffer where a new row may be constructed by calling the updater methods prior to inserting the row into the result set. Only the updater, getter, andinsertRowmethods may be called when the cursor is on the insert row. All of the columns in a result set must be given a value each time this method is called before callinginsertRow. An updater method must be called before a getter method can be called on a column value. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public boolean next()
throws SQLException<!-- start generic documentation --> Moves the cursor down one row from its current position. AResultSetcursor is initially positioned before the first row; the first call to the methodnextmakes the first row the current row; the second call makes the second row the current row, and so on. If an input stream is open for the current row, a call to the methodnextwill implicitly close it. AResultSetobject's warning chain is cleared when a new row is read. <!-- end generic documentation -->
- Returns:
trueif the new current row is valid;falseif there are no more rows
public boolean previous()
throws SQLException<!-- start generic documentation --> Moves the cursor to the previous row in thisResultSetobject. <!-- end generic documentation -->
- Returns:
trueif the cursor is on a valid row;falseif it is off the result set
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void refreshRow()
throws SQLException<!-- start generic documentation --> Refreshes the current row with its most recent value in the database. This method cannot be called when the cursor is on the insert row. TherefreshRowmethod provides a way for an application to explicitly tell the JDBC driver to refetch a row(s) from the database. An application may want to callrefreshRowwhen caching or prefetching is being done by the JDBC driver to fetch the latest value of a row from the database. The JDBC driver may actually refresh multiple rows at once if the fetch size is greater than one. All values are refetched subject to the transaction isolation level and cursor sensitivity. IfrefreshRowis called after calling an updater method, but before calling the methodupdateRow, then the updates made to the row are lost. Calling the methodrefreshRowfrequently will likely slow performance. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public boolean relative(int rows)
throws SQLException<!-- start generic documentation --> Moves the cursor a relative number of rows, either positive or negative. Attempting to move beyond the first/last row in the result set positions the cursor before/after the the first/last row. Callingrelative(0)is valid, but does not change the cursor position. Note: Calling the methodrelative(1)is identical to calling the methodnext()and calling the methodrelative(-1)is identical to calling the methodprevious(). <!-- end generic documentation -->
- Parameters:
rows- anintspecifying the number of rows to move from the current row; a positive number moves the cursor forward; a negative number moves the cursor backward
- Returns:
trueif the cursor is on a row;falseotherwise
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public boolean rowDeleted()
throws SQLException<!-- start generic documentation --> Retrieves whether a row has been deleted. A deleted row may leave a visible "hole" in a result set. This method can be used to detect holes in a result set. The value returned depends on whether or not thisResultSetobject can detect deletions. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always returns false.
- Returns:
trueif a row was deleted and deletions are detected;falseotherwise
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
- See Also:
DatabaseMetaData.deletesAreDetected
public boolean rowInserted()
throws SQLException<!-- start generic documentation --> Retrieves whether the current row has had an insertion. The value returned depends on whether or not thisResultSetobject can detect visible inserts. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always returns false.
- Returns:
trueif a row has had an insertion and insertions are detected;falseotherwise
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
- See Also:
DatabaseMetaData.insertsAreDetected
public boolean rowUpdated()
throws SQLException<!-- start generic documentation --> Retrieves whether the current row has been updated. The value returned depends on whether or not the result set can detect updates. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always returns false.
- Returns:
trueif both (1) the row has been visibly updated by the owner or another and (2) updates are detected
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
- See Also:
DatabaseMetaData.updatesAreDetected
public void setFetchDirection(int direction)
throws SQLException<!-- start generic documentation --> Gives a hint as to the direction in which the rows in thisResultSetobject will be processed. The initial value is determined by theStatementobject that produced thisResultSetobject. The fetch direction may be changed at any time. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB builds and returns result sets as a whole; this method does nothing. However, as mandated by the JDBC standard, an SQLException is thrown if the result set type is TYPE_FORWARD_ONLY and a fetch direction other than FETCH_FORWARD is requested.
- Parameters:
direction- anintspecifying the suggested fetch direction; one ofResultSet.FETCH_FORWARD,ResultSet.FETCH_REVERSE, orResultSet.FETCH_UNKNOWN
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void setFetchSize(int rows)
throws SQLException<!-- start generic documentation --> Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed for thisResultSetobject. If the fetch size specified is zero, the JDBC driver ignores the value and is free to make its own best guess as to what the fetch size should be. The default value is set by theStatementobject that created the result set. The fetch size may be changed at any time. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB builds and returns result sets as a whole; this method does nothing.
- Parameters:
rows- the number of rows to fetch
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateArray(String columnName,
java.sql.Array x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Arrayvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.4, HSQLDB 1.7.0
public void updateArray(int columnIndex,
java.sql.Array x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Arrayvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.4, HSQLDB 1.7.0
public void updateAsciiStream(String columnName,
java.io.InputStream x,
int length)
throws SQLException<!-- start generic documentation --> Updates the designated column with an ascii stream value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column valuelength- the length of the stream
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateAsciiStream(int columnIndex,
java.io.InputStream x,
int length)
throws SQLException<!-- start generic documentation --> Updates the designated column with an ascii stream value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column valuelength- the length of the stream
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateBigDecimal(String columnName,
BigDecimal x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.BigDecimalvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateBigDecimal(int columnIndex,
BigDecimal x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.math.BigDecimalvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateBinaryStream(String columnName,
java.io.InputStream x,
int length)
throws SQLException<!-- start generic documentation --> Updates the designated column with a binary stream value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column valuelength- the length of the stream
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateBinaryStream(int columnIndex,
java.io.InputStream x,
int length)
throws SQLException<!-- start generic documentation --> Updates the designated column with a binary stream value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column valuelength- the length of the stream
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateBlob(String columnName,
java.sql.Blob x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Blobvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.4, HSQLDB 1.7.0
public void updateBlob(int columnIndex,
java.sql.Blob x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Blobvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.4, HSQLDB 1.7.0
public void updateBoolean(String columnName,
boolean x)
throws SQLException<!-- start generic documentation --> Updates the designated column with abooleanvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateBoolean(int columnIndex,
boolean x)
throws SQLException<!-- start generic documentation --> Updates the designated column with abooleanvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2
public void updateByte(String columnName,
byte x)
throws SQLException<!-- start generic documentation --> Updates the designated column with abytevalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateByte(int columnIndex,
byte x)
throws SQLException<!-- start generic documentation --> Updates the designated column with abytevalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateBytes(String columnName,
byte[] x)
throws SQLException<!-- start generic documentation --> Updates the designated column with a byte array value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateBytes(int columnIndex,
byte[] x)
throws SQLException<!-- start generic documentation --> Updates the designated column with abytearray value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateCharacterStream(String columnName,
java.io.Reader reader,
int length)
throws SQLException<!-- start generic documentation --> Updates the designated column with a character stream value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnreader- thejava.io.Readerobject containing the new column valuelength- the length of the stream
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateCharacterStream(int columnIndex,
java.io.Reader x,
int length)
throws SQLException<!-- start generic documentation --> Updates the designated column with a character stream value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column valuelength- the length of the stream
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateClob(String columnName,
java.sql.Clob x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Clobvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.4, HSQLDB 1.7.0
public void updateClob(int columnIndex,
java.sql.Clob x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Clobvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.4, HSQLDB 1.7.0
public void updateDate(String columnName,
Date x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Datevalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateDate(int columnIndex,
Date x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Datevalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateDouble(String columnName,
double x)
throws SQLException<!-- start generic documentation --> Updates the designated column with adoublevalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateDouble(int columnIndex,
double x)
throws SQLException<!-- start generic documentation --> Updates the designated column with adoublevalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateFloat(String columnName,
float x)
throws SQLException<!-- start generic documentation --> Updates the designated column with afloatvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateFloat(int columnIndex,
float x)
throws SQLException<!-- start generic documentation --> Updates the designated column with afloatvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateInt(String columnName,
int x)
throws SQLException<!-- start generic documentation --> Updates the designated column with anintvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateInt(int columnIndex,
int x)
throws SQLException<!-- start generic documentation --> Updates the designated column with anintvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateLong(String columnName,
long x)
throws SQLException<!-- start generic documentation --> Updates the designated column with alongvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateLong(int columnIndex,
long x)
throws SQLException<!-- start generic documentation --> Updates the designated column with alongvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateNull(String columnName)
throws SQLException<!-- start generic documentation --> Updates the designated column with anullvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the column
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateNull(int columnIndex)
throws SQLException<!-- start generic documentation --> Gives a nullable column a null value. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.1, HSQLDB does not support updateable results. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...
- Since:
- JDK 1.2
public void updateObject(String columnName,
Object x)
throws SQLException<!-- start generic documentation --> Updates the designated column with anObjectvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateObject(String columnName,
Object x,
int scale)
throws SQLException<!-- start generic documentation --> Updates the designated column with anObjectvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column valuescale- forjava.sql.Types.DECIMALorjava.sql.Types.NUMERICtypes, this is the number of digits after the decimal point. For all other types this value will be ignored.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateObject(int columnIndex,
Object x)
throws SQLException<!-- start generic documentation --> Updates the designated column with anObjectvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateObject(int columnIndex,
Object x,
int scale)
throws SQLException<!-- start generic documentation --> Updates the designated column with anObjectvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column valuescale- forjava.sql.Types.DECIMAorjava.sql.Types.NUMERICtypes, this is the number of digits after the decimal point. For all other types this value will be ignored.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateRef(String columnName,
java.sql.Ref x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Refvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.4, HSQLDB 1.7.0
public void updateRef(int columnIndex,
java.sql.Ref x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Refvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.4, HSQLDB 1.7.0
public void updateRow()
throws SQLException<!-- start generic documentation --> Updates the underlying database with the new contents of the current row of thisResultSetobject. This method cannot be called when the cursor is on the insert row. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateShort(String columnName,
short x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ashortvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateShort(int columnIndex,
short x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ashortvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateString(String columnName,
String x)
throws SQLException<!-- start generic documentation --> Updates the designated column with aStringvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateString(int columnIndex,
String x)
throws SQLException<!-- start generic documentation --> Updates the designated column with aStringvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable results. This method always throws an SQLException, stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateTime(String columnName,
Time x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Timevalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateTime(int columnIndex,
Time x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Timevalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateTimestamp(String columnName,
Timestamp x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Timestampvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnName- the name of the columnx- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public void updateTimestamp(int columnIndex,
Timestamp x)
throws SQLException<!-- start generic documentation --> Updates the designated column with ajava.sql.Timestampvalue. The updater methods are used to update column values in the current row or the insert row. The updater methods do not update the underlying database; instead theupdateRoworinsertRowmethods are called to update the database. <!-- end generic documentation --> <!-- start release-specific documentation --><!-- end release-specific documentation -->HSQLDB-Specific Information:
Including 1.7.2, HSQLDB does not support updateable result sets. This method always throws an SQLException stating that the operation is not supported.
- Parameters:
columnIndex- the first column is 1, the second is 2, ...x- the new column value
- Since:
- JDK 1.2 (JDK 1.1.x developers: read the new overview for jdbcResultSet)
public boolean wasNull()
throws SQLException<!-- start generic documentation --> Reports whether the last column read had a value of SQLNULL. Note that you must first call one of the getter methods on a column to try to read its value and then call the methodwasNullto see if the value read was SQLNULL. <!-- end generic documentation -->
- Returns:
trueif the last column value read was SQLNULLandfalseotherwise