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<title>Service PreparedStatement</title>
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<td class="navisub">Included Services</td>
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<td class="navisub"><a href="#PropertiesSummary" class="navisub">Properties' Summary</a></td>
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<td class="title">service PreparedStatement</td>
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<td><dl>
<dt><b>Description</b></dt>
<dd>represents a precompiled SQL statement.
</dd>
<dd><P>
A SQL statement is pre-compiled and stored in a PreparedStatement object.
This object can then be used to efficiently execute this statement multiple
times.
</P>
<P>
<B>
Note:
</B>
The
<code>setXXX</code>
methods for setting IN parameter values
must specify types that are compatible with the defined SQL type of
the input parameter. For instance, if the IN parameter has SQL type
Integer, then the method
<a href="XParameters.html">XParameters</a>::<a href="XParameters.html#setInt">setInt()</a>
should be used.
</P>
<p>
If arbitrary parameter type conversions are required, the method
<a href="XParameters.html">XParameters</a>::<a href="XParameters.html#setObject">setObject()</a>
should be used with a target SQL type.
</p>
<p>
Example of setting a parameter; <code>con</code> is an active connection.
</dd>
<dt><b>Example</b></dt>
<dd>:StarBASIC
<pre>
pstmt = con.prepareStatement("UPDATE EMPLOYEES SET SALARY = ? WHERE ID = ?")
pstmt.setDouble(1, 153833.00)
pstmt.setLong(2, 110592)
</pre>
</p>
<P>
Only one
<a href="ResultSet.html">ResultSet</a>
per
<a href="Statement.html">Statement</a>
can be open at any point in
time. Therefore, if the reading of one ResultSet is interleaved
with the reading of another, each must have been generated by
different Statements. All statement
<code>execute</code>
methods implicitly close a statement's current ResultSet if an open one exists.
</p>
</dd>
</dl>
</td>
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</table>
<hr>
<a name="ExportedInterfaces"/><table border="1" width="100%" cellpadding="5" cellspacing="0" class="subtitle">
<tr>
<td class="subtitle" colspan="2">Exported Interfaces</td>
</tr>
<tr>
<td class="imsum_left">::com::sun::star::<a href="../lang/module-ix.html">lang</a>::<a href="../lang/XComponent.html">XComponent</a></td>
<td class="imsum_right"><dl>
<dt><b>Usage Restrictions</b></dt>
<dd><i>optional</i></dd>
<dt><b>Description</b></dt>
<dd>optional for implementation, controls the releasing of resources
and the notification of registered listeners.
</dd>
</dl>
</td>
</tr>
<tr>
<td class="imsum_left"><a href="XCloseable.html">XCloseable</a></td>
<td class="imsum_right"><dl>
<dt><b>Description</b></dt>
<dd>freeing all resources of a statement. A related resultset will be
freed as well.
</dd>
</dl>
</td>
</tr>
<tr>
<td class="imsum_left">::com::sun::star::<a href="../beans/module-ix.html">beans</a>::<a href="../beans/XPropertySet.html">XPropertySet</a></td>
<td class="imsum_right"><dl>
<dt>(referenced entity's summary:)</dt>
<dd>provides information about and access to the
properties from an implementation.
</dd>
</dl>
</td>
</tr>
<tr>
<td class="imsum_left">::com::sun::star::<a href="../util/module-ix.html">util</a>::<a href="../util/XCancellable.html">XCancellable</a></td>
<td class="imsum_right"><dl>
<dt><b>Usage Restrictions</b></dt>
<dd><i>optional</i></dd>
<dt><b>Description</b></dt>
<dd>could be used for cancelling the execution of SQL statements, if both
the DBMS and the driver support aborting an SQL statement.
The implementation is optional.
</dd>
</dl>
</td>
</tr>
<tr>
<td class="imsum_left"><a href="XPreparedStatement.html">XPreparedStatement</a></td>
<td class="imsum_right"><dl>
<dt><b>Description</b></dt>
<dd>is the interface for executing SQL prepared commands.
</dd>
</dl>
</td>
</tr>
<tr>
<td class="imsum_left"><a href="XResultSetMetaDataSupplier.html">XResultSetMetaDataSupplier</a></td>
<td class="imsum_right"><dl>
<dt><b>Description</b></dt>
<dd>provides access to the description of the result set which would be generated by executing the
<a href="PreparedStatement.html">PreparedStatement</a>.
</dd>
</dl>
</td>
</tr>
<tr>
<td class="imsum_left"><a href="XParameters.html">XParameters</a></td>
<td class="imsum_right"><dl>
<dt><b>Description</b></dt>
<dd>is used for setting parameters before execution of the precompiled
statement.
</dd>
</dl>
</td>
</tr>
<tr>
<td class="imsum_left"><a href="XPreparedBatchExecution.html">XPreparedBatchExecution</a></td>
<td class="imsum_right"><dl>
<dt><b>Usage Restrictions</b></dt>
<dd><i>optional</i></dd>
<dt><b>Description</b></dt>
<dd>provides the ability of batch execution. This interface is optional
for execution.
</dd>
<dd><p>
A driver implementing batch execution must return
<b>true</b>
for
<a href="XDatabaseMetaData.html">XDatabaseMetaData</a>::<a href="XDatabaseMetaData.html#supportsBatchUpdates">supportsBatchUpdates()</a>
</p>
</dd>
</dl>
</td>
</tr>
<tr>
<td class="imsum_left"><a href="XWarningsSupplier.html">XWarningsSupplier</a></td>
<td class="imsum_right"><dl>
<dt><b>Description</b></dt>
<dd>controls the chaining of warnings, which may occur on every call
to the connected database. Chained warnings from previous calls will be
cleared before processing a new call.
</dd>
</dl>
</td>
</tr>
<tr>
<td class="imsum_left"><a href="XMultipleResults.html">XMultipleResults</a></td>
<td class="imsum_right"><dl>
<dt><b>Description</b></dt>
<dd>covers the handling of multiple results after executing an SQL command.
</dd>
</dl>
</td>
</tr>
</table>
<a name="PropertiesSummary"/><table border="1" width="100%" cellpadding="5" cellspacing="0" class="subtitle">
<tr>
<td class="subtitle" colspan="2">Properties' Summary</td>
</tr>
<tr>
<td class="imsum_left">long<br>
<a href="#QueryTimeOut">QueryTimeOut</a></td>
<td class="imsum_right">retrieves the number of seconds the driver will wait for a Statement
to execute. If the limit is exceeded, a SQLException is thrown.
There is no limitation, if set to zero.
</td>
</tr>
<tr>
<td class="imsum_left">long<br>
<a href="#MaxFieldSize">MaxFieldSize</a></td>
<td class="imsum_right">returns the maximum number of bytes allowed for any column value.
</td>
</tr>
<tr>
<td class="imsum_left">long<br>
<a href="#MaxRows">MaxRows</a></td>
<td class="imsum_right">retrieves the maximum number of rows that a ResultSet can contain.
If the limit is exceeded, the excess rows are silently dropped.
<br>There is no limitation, if set to zero.
</td>
</tr>
<tr>
<td class="imsum_left">string<br>
<a href="#CursorName">CursorName</a></td>
<td class="imsum_right">defines the SQL cursor name that will be used by subsequent Statement
<code>execute</code>
methods.
</td>
</tr>
<tr>
<td class="imsum_left">long<br>
<a href="#ResultSetConcurrency">ResultSetConcurrency</a></td>
<td class="imsum_right">retrieves the result set concurrency.
</td>
</tr>
<tr>
<td class="imsum_left">long<br>
<a href="#ResultSetType">ResultSetType</a></td>
<td class="imsum_right">Determine the result set type.
</td>
</tr>
<tr>
<td class="imsum_left">long<br>
<a href="#FetchDirection">FetchDirection</a></td>
<td class="imsum_right">retrieves the direction for fetching rows from database tables
that is the default for result sets generated from this
<code>Statement</code>
object.
</td>
</tr>
<tr>
<td class="imsum_left">long<br>
<a href="#FetchSize">FetchSize</a></td>
<td class="imsum_right">retrieves the number of result set rows that is the default fetch size
for result sets generated from this
<code>Statement</code>
object.
</td>
</tr>
</table>
<a name="PropertiesDetails"/><table border="1" width="100%" cellpadding="5" cellspacing="0" class="subtitle">
<tr>
<td class="subtitle">Properties' Details</td>
</tr>
<tr>
<td class="imdetail"><a name="QueryTimeOut" class="membertitle">QueryTimeOut</a><table border="0" width="96%" cellpadding="5" cellspacing="0" class="table-in-data" bgcolor="#ffffff" align="center">
<tr>
<td>long <b>QueryTimeOut</b>;<hr>
<dl>
<dt><b>Description</b></dt>
<dd>retrieves the number of seconds the driver will wait for a Statement
to execute. If the limit is exceeded, a SQLException is thrown.
There is no limitation, if set to zero.
</dd>
</dl>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td class="imdetail"><a name="MaxFieldSize" class="membertitle">MaxFieldSize</a><table border="0" width="96%" cellpadding="5" cellspacing="0" class="table-in-data" bgcolor="#ffffff" align="center">
<tr>
<td>long <b>MaxFieldSize</b>;<hr>
<dl>
<dt><b>Description</b></dt>
<dd>returns the maximum number of bytes allowed for any column value.
</dd>
<dd><p>
This limit is the maximum number of bytes that can be returned
for any column value. The limit applies only to
<a href="DataType.html">DataType</a>::<a href="DataType.html#BINARY">BINARY</a>
,
<a href="DataType.html">DataType</a>::<a href="DataType.html#VARBINARY">VARBINARY</a>
,
<a href="DataType.html">DataType</a>::<a href="DataType.html#LONGVARBINARY">LONGVARBINARY</a>
,
<a href="DataType.html">DataType</a>::<a href="DataType.html#CHAR">CHAR</a>
,
<a href="DataType.html">DataType</a>::<a href="DataType.html#VARCHAR">VARCHAR</a>
,
and
<a href="DataType.html">DataType</a>::<a href="DataType.html#LONGVARCHAR">LONGVARCHAR</a>
columns.
If the limit is exceeded, the excess data is silently discarded.
</p>
<p>
There is no limitation, if set to zero.
</p>
</dd>
</dl>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td class="imdetail"><a name="MaxRows" class="membertitle">MaxRows</a><table border="0" width="96%" cellpadding="5" cellspacing="0" class="table-in-data" bgcolor="#ffffff" align="center">
<tr>
<td>long <b>MaxRows</b>;<hr>
<dl>
<dt><b>Description</b></dt>
<dd>retrieves the maximum number of rows that a ResultSet can contain.
If the limit is exceeded, the excess rows are silently dropped.
<br>There is no limitation, if set to zero.
</dd>
</dl>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td class="imdetail"><a name="CursorName" class="membertitle">CursorName</a><table border="0" width="96%" cellpadding="5" cellspacing="0" class="table-in-data" bgcolor="#ffffff" align="center">
<tr>
<td>string <b>CursorName</b>;<hr>
<dl>
<dt><b>Description</b></dt>
<dd>defines the SQL cursor name that will be used by subsequent Statement
<code>execute</code>
methods.
</dd>
<dd><p>
This name can then be used in SQL positioned update/delete statements to
identify the current row in the ResultSet generated by this statement. If
the database does not support positioned update/delete, this property is
a noop. To insure that a cursor has the proper isolation level to support
updates, the cursor's SELECT statement should be of the form
'select for update ...'. If the 'for update' phrase is omitted,
positioned updates may fail.
</p>
<P>
<B>
Note:
</B>
By definition, positioned update/delete
execution must be done by a different Statement than the one
which generated the ResultSet being used for positioning. Also,
cursor names must be unique within a connection.
</p>
</dd>
</dl>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td class="imdetail"><a name="ResultSetConcurrency" class="membertitle">ResultSetConcurrency</a><table border="0" width="96%" cellpadding="5" cellspacing="0" class="table-in-data" bgcolor="#ffffff" align="center">
<tr>
<td>long <b>ResultSetConcurrency</b>;<hr>
<dl>
<dt><b>Description</b></dt>
<dd>retrieves the result set concurrency.
</dd>
<dt><b>See also</b></dt>
<dd><a href="ResultSetConcurrency.html">ResultSetConcurrency</a></dd>
</dl>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td class="imdetail"><a name="ResultSetType" class="membertitle">ResultSetType</a><table border="0" width="96%" cellpadding="5" cellspacing="0" class="table-in-data" bgcolor="#ffffff" align="center">
<tr>
<td>long <b>ResultSetType</b>;<hr>
<dl>
<dt><b>Description</b></dt>
<dd>Determine the result set type.
</dd>
<dt><b>See also</b></dt>
<dd><a href="ResultSetType.html">ResultSetType</a></dd>
</dl>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td class="imdetail"><a name="FetchDirection" class="membertitle">FetchDirection</a><table border="0" width="96%" cellpadding="5" cellspacing="0" class="table-in-data" bgcolor="#ffffff" align="center">
<tr>
<td>long <b>FetchDirection</b>;<hr>
<dl>
<dt><b>Description</b></dt>
<dd>retrieves the direction for fetching rows from database tables
that is the default for result sets generated from this
<code>Statement</code>
object.
</dd>
<dd><p>
If this
<code>Statement</code>
object has not set a fetch direction,
the return value is implementation-specific.
</p>
</dd>
</dl>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td class="imdetail"><a name="FetchSize" class="membertitle">FetchSize</a><table border="0" width="96%" cellpadding="5" cellspacing="0" class="table-in-data" bgcolor="#ffffff" align="center">
<tr>
<td>long <b>FetchSize</b>;<hr>
<dl>
<dt><b>Description</b></dt>
<dd>retrieves the number of result set rows that is the default fetch size
for result sets generated from this
<code>Statement</code>
object.
</dd>
<dd><p>
If this
<code>Statement</code>
object has not set a fetch size,
the return value is implementation-specific.
</p>
</dd>
</dl>
</td>
</tr>
</table>
</td>
</tr>
</table>
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