## com.mysql.jdbc
Class PreparedStatement

    java.lang.Object
      com.mysql.jdbc.StatementImpl
          com.mysql.jdbc.PreparedStatement

All Implemented Interfaces:
  java.sql.PreparedStatement, java.sql.Statement, java.sql.Wrapper

Direct Known Subclasses:
  CallableStatement, JDBC4PreparedStatement, ServerPreparedStatement

    public class PreparedStatement

extends StatementImpl
implements java.sql.PreparedStatement

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.

Note: The setXXX 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 setInt should be used.

If arbitrary parameter type conversions are required, then the setObject method should be used with a target SQL type.

See Also:
  `ResultSet`, `PreparedStatement`

Nested Class Summary
`(package private) class` `PreparedStatement.BatchParams`
`(package private) class` `PreparedStatement.EmulatedPreparedStatementBindings`
`(package private) class` `PreparedStatement.EndPoint`
`(package private) class` `PreparedStatement.ParseInfo`

Nested classes/interfaces inherited from class com.mysql.jdbc.StatementImpl
`StatementImpl.CancelTask`

Field Summary
`protected java.lang.String` `batchedValuesClause`
`protected boolean` `batchHasPlainStatements` Does the batch (if any) contain "plain" statements added by Statement.addBatch(String)?
`protected char` `firstCharOfStmt` What is the first character of the prepared statement (used to check for SELECT vs.
`protected boolean` `hasLimitClause` Does the SQL for this statement contain a 'limit' clause?
`protected boolean` `isLoadDataQuery` Is this query a LOAD DATA query?
`protected int` `numberOfExecutions`
`protected java.lang.String` `originalSql` The SQL that was passed in to 'prepare'
`protected int` `parameterCount` The number of parameters in this PreparedStatement
`protected MysqlParameterMetadata` `parameterMetaData`
`protected int[]` `parameterTypes` Only used by statement interceptors at the moment to provide introspection of bound values
`protected boolean` `useTrueBoolean` Are we using a version of MySQL where we can use 'true' boolean values?
`protected boolean` `usingAnsiMode`

Fields inherited from class com.mysql.jdbc.StatementImpl

`batchedArgs, batchedGeneratedKeys, cancelTimeoutMutex, charConverter, charEncoding, connection, connectionId, continueBatchOnError, currentCatalog, doEscapeProcessing, eventSink, holdResultsOpenOverClose, isClosed, lastInsertId, maxFieldSize, maxRows, maxRowsChanged, openResults, pedantic, PING_MARKER, pingTarget, pointOfOrigin, profileSQL, results, resultSetConcurrency, resultSetType, retrieveGeneratedKeys, statementCounter, statementId, timeoutInMillis, updateCount, useLegacyDatetimeCode, USES_VARIABLES_FALSE, USES_VARIABLES_TRUE, USES_VARIABLES_UNKNOWN, useUsageAdvisor, warningChain, wasCancelled, wasCancelledByTimeout`

Fields inherited from interface java.sql.Statement
`CLOSE_ALL_RESULTS, CLOSE_CURRENT_RESULT, EXECUTE_FAILED, KEEP_CURRENT_RESULT, NO_GENERATED_KEYS, RETURN_GENERATED_KEYS, SUCCESS_NO_INFO`

Constructor Summary
`PreparedStatement(ConnectionImpl conn, java.lang.String catalog)` Constructor used by server-side prepared statements
`PreparedStatement(ConnectionImpl conn, java.lang.String sql, java.lang.String catalog)` Constructor for the PreparedStatement class.
`PreparedStatement(ConnectionImpl conn, java.lang.String sql, java.lang.String catalog, PreparedStatement.ParseInfo cachedParseInfo)` Creates a new PreparedStatement object.

Method Summary
`void` `addBatch()` JDBC 2.0 Add a set of parameters to the batch.
`void` `addBatch(java.lang.String sql)` DOCUMENT ME!
`protected java.lang.String` `asSql()`
`protected java.lang.String` `asSql(boolean quoteStreamsAndUnknowns)`
`boolean` `canRewriteAsMultivalueInsertStatement()`
`protected boolean` `checkReadOnlySafeStatement()` Check to see if the statement is safe for read-only slaves after failover.
`void` `clearBatch()` JDBC 2.0 Make the set of commands in the current batch empty.
`void` `clearParameters()` In general, parameter values remain in force for repeated used of a Statement.
`void` `close()` Closes this prepared statement and releases all resources.
`protected int` `computeBatchSize(int numBatchedArgs)` Computes the optimum number of batched parameter lists to send without overflowing max_allowed_packet.
`protected long[]` `computeMaxParameterSetSizeAndBatchSize(int numBatchedArgs)` Computes the maximum parameter set size, and entire batch size given the number of arguments in the batch.
`protected boolean` `containsOnDuplicateKeyInString(java.lang.String sql)`
`protected boolean` `containsOnDuplicateKeyUpdateInSQL()`
`boolean` `execute()` Some prepared statements return multiple results; the execute method handles these complex statements as well as the simpler form of statements handled by executeQuery and executeUpdate
`int[]` `executeBatch()` JDBC 2.0 Submit a batch of commands to the database for execution.
`protected int[]` `executeBatchedInserts(int batchTimeout)` Rewrites the already prepared statement into a multi-value insert statement of 'statementsPerBatch' values and executes the entire batch using this new statement.
`protected int[]` `executeBatchSerially(int batchTimeout)` Executes the current batch of statements by executing them one-by-one.
`protected ResultSetInternalMethods` `executeInternal(int maxRowsToRetrieve, Buffer sendPacket, boolean createStreamingResultSet, boolean queryIsSelectOnly, Field[] metadataFromCache, boolean isBatch)` Actually execute the prepared statement.
`protected int[]` `executePreparedBatchAsMultiStatement(int batchTimeout)` Rewrites the already prepared statement into a multi-statement query of 'statementsPerBatch' values and executes the entire batch using this new statement.
`java.sql.ResultSet` `executeQuery()` A Prepared SQL query is executed and its ResultSet is returned
`int` `executeUpdate()` Execute a SQL INSERT, UPDATE or DELETE statement.
`protected int` `executeUpdate(boolean clearBatchedGeneratedKeysAndWarnings, boolean isBatch)`
`protected int` `executeUpdate(byte[][] batchedParameterStrings, java.io.InputStream[] batchedParameterStreams, boolean[] batchedIsStream, int[] batchedStreamLengths, boolean[] batchedIsNull, boolean isReallyBatch)` Added to allow batch-updates
`protected Buffer` `fillSendPacket()` Creates the packet that contains the query to be sent to the server.
`protected Buffer` `fillSendPacket(byte[][] batchedParameterStrings, java.io.InputStream[] batchedParameterStreams, boolean[] batchedIsStream, int[] batchedStreamLengths)` Creates the packet that contains the query to be sent to the server.
`byte[]` `getBytesRepresentation(int parameterIndex)` DOCUMENT ME!
`protected static PreparedStatement` `getInstance(ConnectionImpl conn, java.lang.String catalog)` Creates a prepared statement instance -- We need to provide factory-style methods so we can support both JDBC3 (and older) and JDBC4 runtimes, otherwise the class verifier complains when it tries to load JDBC4-only interface classes that are present in JDBC4 method signatures.
`protected static PreparedStatement` `getInstance(ConnectionImpl conn, java.lang.String sql, java.lang.String catalog)` Creates a prepared statement instance -- We need to provide factory-style methods so we can support both JDBC3 (and older) and JDBC4 runtimes, otherwise the class verifier complains when it tries to load JDBC4-only interface classes that are present in JDBC4 method signatures.

`protected static PreparedStatement`

`getInstance(ConnectionImpl conn, java.lang.String sql, java.lang.String catalog, PreparedStatement.ParseInfo cachedParseInfo)`
Creates a prepared statement instance -- We need to provide factory-style methods so we can support both JDBC3 (and older) and JDBC4 runtimes, otherwise the class verifier complains when it tries to load JDBC4-only interface classes that are present in JDBC4 method signatures.

`java.sql.ResultSetMetaData` `getMetaData()` The number, types and properties of a ResultSet's columns are provided by the getMetaData method.
`ParameterBindings` `getParameterBindings()`
`protected int` `getParameterIndexOffset()` For calling stored functions, this will be -1 as we don't really count the first '?'
`java.sql.ParameterMetaData` `getParameterMetaData()`
`(package private) PreparedStatement.ParseInfo` `getParseInfo()`
`java.lang.String` `getPreparedSql()`
`int` `getUpdateCount()` getUpdateCount returns the current result as an update count, if the result is a ResultSet or there are no more results, -1 is returned.
`boolean` `isClosed()`
`(package private) boolean` `isNull(int paramIndex)`
`protected boolean` `isSelectQuery()`
`protected static int` `readFully(java.io.Reader reader, char[] buf, int length)` Reads length bytes from reader into buf.
`protected void` `realClose(boolean calledExplicitly, boolean closeOpenResults)` Closes this statement, releasing all resources
`void` `setArray(int i, java.sql.Array x)` JDBC 2.0 Set an Array parameter.
`void` `setAsciiStream(int parameterIndex, java.io.InputStream x)`
`void` `setAsciiStream(int parameterIndex, java.io.InputStream x, int length)` When a very large ASCII value is input to a LONGVARCHAR parameter, it may be more practical to send it via a java.io.InputStream.
`void` `setAsciiStream(int parameterIndex, java.io.InputStream x, long length)`
`void` `setBigDecimal(int parameterIndex, java.math.BigDecimal x)` Set a parameter to a java.math.BigDecimal value.
`void` `setBinaryStream(int parameterIndex, java.io.InputStream x)`
`void` `setBinaryStream(int parameterIndex, java.io.InputStream x, int length)` When a very large binary value is input to a LONGVARBINARY parameter, it may be more practical to send it via a java.io.InputStream.
`void` `setBinaryStream(int parameterIndex, java.io.InputStream x, long length)`
`void` `setBlob(int i, java.sql.Blob x)` JDBC 2.0 Set a BLOB parameter.
`void` `setBlob(int parameterIndex, java.io.InputStream inputStream)`
`void` `setBlob(int parameterIndex, java.io.InputStream inputStream, long length)`
`void` `setBoolean(int parameterIndex, boolean x)` Set a parameter to a Java boolean value.
`void` `setByte(int parameterIndex, byte x)` Set a parameter to a Java byte value.
`void` `setBytes(int parameterIndex, byte[] x)` Set a parameter to a Java array of bytes.
`protected void` `setBytes(int parameterIndex, byte[] x, boolean checkForIntroducer, boolean escapeForMBChars)`
`protected void` `setBytesNoEscape(int parameterIndex, byte[] parameterAsBytes)` Used by updatable result sets for refreshRow() because the parameter has already been escaped for updater or inserter prepared statements.
`protected void` `setBytesNoEscapeNoQuotes(int parameterIndex, byte[] parameterAsBytes)`
`void` `setCharacterStream(int parameterIndex, java.io.Reader reader)`
`void` `setCharacterStream(int parameterIndex, java.io.Reader reader, int length)` JDBC 2.0 When a very large UNICODE value is input to a LONGVARCHAR parameter, it may be more practical to send it via a java.io.Reader.
`void` `setCharacterStream(int parameterIndex, java.io.Reader reader, long length)`
`void` `setClob(int i, java.sql.Clob x)` JDBC 2.0 Set a CLOB parameter.
`void` `setClob(int parameterIndex, java.io.Reader reader)`
`void` `setClob(int parameterIndex, java.io.Reader reader, long length)`
`void` `setDate(int parameterIndex, java.sql.Date x)` Set a parameter to a java.sql.Date value.
`void` `setDate(int parameterIndex, java.sql.Date x, java.util.Calendar cal)` Set a parameter to a java.sql.Date value.
`void` `setDouble(int parameterIndex, double x)` Set a parameter to a Java double value.
`void` `setFloat(int parameterIndex, float x)` Set a parameter to a Java float value.
`void` `setInt(int parameterIndex, int x)` Set a parameter to a Java int value.
`protected void` `setInternal(int paramIndex, byte[] val)`
`protected void` `setInternal(int paramIndex, java.lang.String val)`
`void` `setLong(int parameterIndex, long x)` Set a parameter to a Java long value.
`void` `setNCharacterStream(int parameterIndex, java.io.Reader value)`
`void` `setNCharacterStream(int parameterIndex, java.io.Reader reader, long length)` JDBC 2.0 When a very large UNICODE value is input to a LONGVARCHAR parameter, it may be more practical to send it via a java.io.Reader.
`void` `setNClob(int parameterIndex, java.io.Reader reader)`
`void` `setNClob(int parameterIndex, java.io.Reader reader, long length)` JDBC 4.0 Set a NCLOB parameter.
`void` `setNString(int parameterIndex, java.lang.String x)` Set a parameter to a Java String value.
`void` `setNull(int parameterIndex, int sqlType)` Set a parameter to SQL NULL Note: You must specify the parameters SQL type (although MySQL ignores it)
`void` `setNull(int parameterIndex, int sqlType, java.lang.String arg)` Set a parameter to SQL NULL.
`void` `setObject(int parameterIndex, java.lang.Object parameterObj)` DOCUMENT ME!
`void` `setObject(int parameterIndex, java.lang.Object parameterObj, int targetSqlType)` DOCUMENT ME!
`void` `setObject(int parameterIndex, java.lang.Object parameterObj, int targetSqlType, int scale)` Set the value of a parameter using an object; use the java.lang equivalent objects for integral values.
`protected int` `setOneBatchedParameterSet(java.sql.PreparedStatement batchedStatement, int batchedParamIndex, java.lang.Object paramSet)`
`void` `setRef(int i, java.sql.Ref x)` JDBC 2.0 Set a REF(<structured-type>) parameter.
`(package private) void` `setResultSetConcurrency(int concurrencyFlag)` Sets the concurrency for result sets generated by this statement
`(package private) void` `setResultSetType(int typeFlag)` Sets the result set type for result sets generated by this statement
`protected void` `setRetrieveGeneratedKeys(boolean retrieveGeneratedKeys)` DOCUMENT ME!
`void` `setShort(int parameterIndex, short x)` Set a parameter to a Java short value.
`void` `setString(int parameterIndex, java.lang.String x)` Set a parameter to a Java String value.
`void` `setTime(int parameterIndex, java.sql.Time x)` Set a parameter to a java.sql.Time value.
`void` `setTime(int parameterIndex, java.sql.Time x, java.util.Calendar cal)` Set a parameter to a java.sql.Time value.
`void` `setTimestamp(int parameterIndex, java.sql.Timestamp x)` Set a parameter to a java.sql.Timestamp value.
`void` `setTimestamp(int parameterIndex, java.sql.Timestamp x, java.util.Calendar cal)` Set a parameter to a java.sql.Timestamp value.
`void` `setUnicodeStream(int parameterIndex, java.io.InputStream x, int length)` Deprecated.
`void` `setURL(int parameterIndex, java.net.URL arg)`
`java.lang.String` `toString()` Returns this PreparedStatement represented as a string.

Methods inherited from class com.mysql.jdbc.StatementImpl

`cancel, checkClosed, checkForDml, checkNullOrEmptyQuery, clearWarnings, closeAllOpenResults, createStreamingResultSet, disableStreamingResults, doPingInstead, enableStreamingResults, execute, execute, execute, execute, executeQuery, executeSimpleNonQuery, executeUpdate, executeUpdate, executeUpdate, executeUpdate, executeUpdate, findStartOfStatement, generatePingResultSet, getBatchedGeneratedKeys, getBatchedGeneratedKeys, getCalendarInstanceForSessionOrNew, getConnection, getFetchDirection, getFetchSize, getGeneratedKeys, getGeneratedKeysInternal, getId, getLastInsertID, getLocalInfileInputStream, getLongUpdateCount, getMaxFieldSize, getMaxRows, getMoreResults, getMoreResults, getQueryTimeout, getResultSet, getResultSetConcurrency, getResultSetHoldability, getResultSetInternal, getResultSetType, getWarnings, handleExceptionForBatch, hasDeadlockOrTimeoutRolledBackTx, isPoolable, isWrapperFor, processMultiCountsAndKeys, resetCancelledState, setCursorName, setEscapeProcessing, setFetchDirection, setFetchSize, setHoldResultsOpenOverClose, setLocalInfileInputStream, setMaxFieldSize, setMaxRows, setPingTarget, setPoolable, setQueryTimeout, unwrap`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Methods inherited from interface java.sql.PreparedStatement
`setNClob, setRowId, setSQLXML`

Methods inherited from interface java.sql.Statement

`cancel, clearWarnings, execute, execute, execute, execute, executeQuery, executeUpdate, executeUpdate, executeUpdate, executeUpdate, getConnection, getFetchDirection, getFetchSize, getGeneratedKeys, getMaxFieldSize, getMaxRows, getMoreResults, getMoreResults, getQueryTimeout, getResultSet, getResultSetConcurrency, getResultSetHoldability, getResultSetType, getWarnings, isPoolable, setCursorName, setEscapeProcessing, setFetchDirection, setFetchSize, setMaxFieldSize, setMaxRows, setPoolable, setQueryTimeout`

Methods inherited from interface java.sql.Wrapper
`isWrapperFor, unwrap`

Field Detail

### batchHasPlainStatements

    protected boolean batchHasPlainStatements

  Does the batch (if any) contain "plain" statements added by Statement.addBatch(String)? If so, we can't re-write it to use multi-value or multi-queries.

### firstCharOfStmt

    protected char firstCharOfStmt

  What is the first character of the prepared statement (used to check for SELECT vs. INSERT/UPDATE/DELETE)

### hasLimitClause

    protected boolean hasLimitClause

  Does the SQL for this statement contain a 'limit' clause?

### isLoadDataQuery

    protected boolean isLoadDataQuery

  Is this query a LOAD DATA query?

### numberOfExecutions

    protected int numberOfExecutions

### originalSql

    protected java.lang.String originalSql

  The SQL that was passed in to 'prepare'

### parameterCount

    protected int parameterCount

  The number of parameters in this PreparedStatement

### parameterMetaData

    protected MysqlParameterMetadata parameterMetaData

### parameterTypes

    protected int[] parameterTypes

  Only used by statement interceptors at the moment to provide introspection of bound values

### useTrueBoolean

    protected boolean useTrueBoolean

  Are we using a version of MySQL where we can use 'true' boolean values?

### usingAnsiMode

    protected boolean usingAnsiMode

### batchedValuesClause

    protected java.lang.String batchedValuesClause

Constructor Detail

### PreparedStatement

    public PreparedStatement(ConnectionImpl conn,
                             java.lang.String catalog)
                      throws java.sql.SQLException

  Constructor used by server-side prepared statements

  Parameters:
    `conn` - the connection that created us
    `catalog` - the catalog in use when we were created
  Throws:
    `java.sql.SQLException` - if an error occurs

### PreparedStatement

    public PreparedStatement(ConnectionImpl conn,
                             java.lang.String sql,
                             java.lang.String catalog)
                      throws java.sql.SQLException

  Constructor for the PreparedStatement class.

  Parameters:
    `conn` - the connection creating this statement
    `sql` - the SQL for this statement
    `catalog` - the catalog/database this statement should be issued against
  Throws:
    `java.sql.SQLException` - if a database error occurs.

### PreparedStatement

    public PreparedStatement(ConnectionImpl conn,
                             java.lang.String sql,
                             java.lang.String catalog,
                             PreparedStatement.ParseInfo cachedParseInfo)
                      throws java.sql.SQLException

  Creates a new PreparedStatement object.

  Parameters:
    `conn` - the connection creating this statement
    `sql` - the SQL for this statement
    `catalog` - the catalog/database this statement should be issued against
    `cachedParseInfo` - already created parseInfo.
  Throws:
    `java.sql.SQLException` - DOCUMENT ME!

Method Detail

### readFully

    protected static int readFully(java.io.Reader reader,
                                   char[] buf,
                                   int length)
                            throws java.io.IOException

  Reads length bytes from reader into buf. Blocks until enough input is available

  Parameters:
    `reader` - DOCUMENT ME!
    `buf` - DOCUMENT ME!
    `length` - DOCUMENT ME!
  Returns:
    DOCUMENT ME!
  Throws:
    `java.io.IOException` - DOCUMENT ME!

### getInstance

    protected static PreparedStatement getInstance(ConnectionImpl conn,
                                                   java.lang.String catalog)
                                            throws java.sql.SQLException

  Creates a prepared statement instance -- We need to provide factory-style methods so we can support both JDBC3 (and older) and JDBC4 runtimes, otherwise the class verifier complains when it tries to load JDBC4-only interface classes that are present in JDBC4 method signatures.

  Throws:
    `java.sql.SQLException`

### getInstance

    protected static PreparedStatement getInstance(ConnectionImpl conn,
                                                   java.lang.String sql,
                                                   java.lang.String catalog)
                                            throws java.sql.SQLException

  Creates a prepared statement instance -- We need to provide factory-style methods so we can support both JDBC3 (and older) and JDBC4 runtimes, otherwise the class verifier complains when it tries to load JDBC4-only interface classes that are present in JDBC4 method signatures.

  Throws:
    `java.sql.SQLException`

### getInstance

    protected static PreparedStatement getInstance(ConnectionImpl conn,
                                                   java.lang.String sql,
                                                   java.lang.String catalog,
                                                   PreparedStatement.ParseInfo cachedParseInfo)
                                            throws java.sql.SQLException

  Creates a prepared statement instance -- We need to provide factory-style methods so we can support both JDBC3 (and older) and JDBC4 runtimes, otherwise the class verifier complains when it tries to load JDBC4-only interface classes that are present in JDBC4 method signatures.

  Throws:
    `java.sql.SQLException`

### addBatch

    public void addBatch()
                  throws java.sql.SQLException

  JDBC 2.0 Add a set of parameters to the batch.

  Specified by:
    `addBatch` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException` - if a database-access error occurs.
  See Also:
    `StatementImpl.addBatch(java.lang.String)`

### addBatch

    public void addBatch(java.lang.String sql)
                  throws java.sql.SQLException

  Description copied from class: `StatementImpl`
  DOCUMENT ME!

  Specified by:
    `addBatch` in interface `java.sql.Statement`
  Overrides:
    `addBatch` in class `StatementImpl`
  Parameters:
    `sql` - DOCUMENT ME!
  Throws:
    `java.sql.SQLException` - DOCUMENT ME!

### asSql

    protected java.lang.String asSql()
                              throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

### asSql

    protected java.lang.String asSql(boolean quoteStreamsAndUnknowns)
                              throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

### clearBatch

    public void clearBatch()
                    throws java.sql.SQLException

  Description copied from class: `StatementImpl`
  JDBC 2.0 Make the set of commands in the current batch empty. This method is optional.

  Specified by:
    `clearBatch` in interface `java.sql.Statement`
  Overrides:
    `clearBatch` in class `StatementImpl`
  Throws:
    `java.sql.SQLException` - if a database-access error occurs, or the driver does not support batch statements

### clearParameters

    public void clearParameters()
                         throws java.sql.SQLException

  In general, parameter values remain in force for repeated used of a Statement. Setting a parameter value automatically clears its previous value. However, in some cases, it is useful to immediately release the resources used by the current parameter values; this can be done by calling clearParameters

  Specified by:
    `clearParameters` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### close

    public void close()
               throws java.sql.SQLException

  Closes this prepared statement and releases all resources.

  Specified by:
    `close` in interface `java.sql.Statement`
  Overrides:
    `close` in class `StatementImpl`
  Throws:
    `java.sql.SQLException` - if database error occurs.

### checkReadOnlySafeStatement

    protected boolean checkReadOnlySafeStatement()
                                          throws java.sql.SQLException

  Check to see if the statement is safe for read-only slaves after failover.

  Returns:
    true if safe for read-only.
  Throws:
    `java.sql.SQLException`

### execute

    public boolean execute()
                    throws java.sql.SQLException

  Some prepared statements return multiple results; the execute method handles these complex statements as well as the simpler form of statements handled by executeQuery and executeUpdate

  Specified by:
    `execute` in interface `java.sql.PreparedStatement`
  Returns:
    true if the next result is a ResultSet; false if it is an update count or there are no more results
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### executeBatch

    public int[] executeBatch()
                       throws java.sql.SQLException

  JDBC 2.0 Submit a batch of commands to the database for execution. This method is optional.

  Specified by:
    `executeBatch` in interface `java.sql.Statement`
  Overrides:
    `executeBatch` in class `StatementImpl`
  Returns:
    an array of update counts containing one element for each command in the batch. The array is ordered according to the order in which commands were inserted into the batch
  Throws:
    `java.sql.SQLException` - if a database-access error occurs, or the driver does not support batch statements
    `java.sql.BatchUpdateException` - DOCUMENT ME!

### canRewriteAsMultivalueInsertStatement

    public boolean canRewriteAsMultivalueInsertStatement()

### executePreparedBatchAsMultiStatement

    protected int[] executePreparedBatchAsMultiStatement(int batchTimeout)
                                                  throws java.sql.SQLException

  Rewrites the already prepared statement into a multi-statement query of 'statementsPerBatch' values and executes the entire batch using this new statement.

  Returns:
    update counts in the same fashion as executeBatch()
  Throws:
    `java.sql.SQLException`

### executeBatchedInserts

    protected int[] executeBatchedInserts(int batchTimeout)
                                   throws java.sql.SQLException

  Rewrites the already prepared statement into a multi-value insert statement of 'statementsPerBatch' values and executes the entire batch using this new statement.

  Returns:
    update counts in the same fashion as executeBatch()
  Throws:
    `java.sql.SQLException`

### computeBatchSize

    protected int computeBatchSize(int numBatchedArgs)

  Computes the optimum number of batched parameter lists to send without overflowing max_allowed_packet.

  Parameters:
    `numBatchedArgs` -
  Returns:

### computeMaxParameterSetSizeAndBatchSize

    protected long[] computeMaxParameterSetSizeAndBatchSize(int numBatchedArgs)

  Computes the maximum parameter set size, and entire batch size given the number of arguments in the batch.

### executeBatchSerially

    protected int[] executeBatchSerially(int batchTimeout)
                                  throws java.sql.SQLException

  Executes the current batch of statements by executing them one-by-one.

  Returns:
    a list of update counts
  Throws:
    `java.sql.SQLException` - if an error occurs

### executeInternal

    protected ResultSetInternalMethods executeInternal(int maxRowsToRetrieve,
                                                       Buffer sendPacket,
                                                       boolean createStreamingResultSet,
                                                       boolean queryIsSelectOnly,
                                                       Field[] metadataFromCache,
                                                       boolean isBatch)
                                                throws java.sql.SQLException

  Actually execute the prepared statement. This is here so server-side PreparedStatements can re-use most of the code from this class.

  Parameters:
    `maxRowsToRetrieve` - the max number of rows to return
    `sendPacket` - the packet to send
    `createStreamingResultSet` - should a 'streaming' result set be created?
    `queryIsSelectOnly` - is this query doing a SELECT?
    `unpackFields` - DOCUMENT ME!
  Returns:
    the results as a ResultSet
  Throws:
    `java.sql.SQLException` - if an error occurs.

### executeQuery

    public java.sql.ResultSet executeQuery()
                                    throws java.sql.SQLException

  A Prepared SQL query is executed and its ResultSet is returned

  Specified by:
    `executeQuery` in interface `java.sql.PreparedStatement`
  Returns:
    a ResultSet that contains the data produced by the query - never null
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### executeUpdate

    public int executeUpdate()
                      throws java.sql.SQLException

  Execute a SQL INSERT, UPDATE or DELETE statement. In addition, SQL statements that return nothing such as SQL DDL statements can be executed.

  Specified by:
    `executeUpdate` in interface `java.sql.PreparedStatement`
  Returns:
    either the row count for INSERT, UPDATE or DELETE; or 0 for SQL statements that return nothing.
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### executeUpdate

    protected int executeUpdate(boolean clearBatchedGeneratedKeysAndWarnings,
                                boolean isBatch)
                         throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

### executeUpdate

    protected int executeUpdate(byte[][] batchedParameterStrings,
                                java.io.InputStream[] batchedParameterStreams,
                                boolean[] batchedIsStream,
                                int[] batchedStreamLengths,
                                boolean[] batchedIsNull,
                                boolean isReallyBatch)
                         throws java.sql.SQLException

  Added to allow batch-updates

  Parameters:
    `batchedParameterStrings` - string values used in single statement
    `batchedParameterStreams` - stream values used in single statement
    `batchedIsStream` - flags for streams used in single statement
    `batchedStreamLengths` - lengths of streams to be read.
    `batchedIsNull` - flags for parameters that are null
  Returns:
    the update count
  Throws:
    `java.sql.SQLException` - if a database error occurs

### containsOnDuplicateKeyUpdateInSQL

    protected boolean containsOnDuplicateKeyUpdateInSQL()

### fillSendPacket

    protected Buffer fillSendPacket()
                             throws java.sql.SQLException

  Creates the packet that contains the query to be sent to the server.

  Returns:
    A Buffer filled with the query representing the PreparedStatement.
  Throws:
    `java.sql.SQLException` - if an error occurs.

### fillSendPacket

    protected Buffer fillSendPacket(byte[][] batchedParameterStrings,
                                    java.io.InputStream[] batchedParameterStreams,
                                    boolean[] batchedIsStream,
                                    int[] batchedStreamLengths)
                             throws java.sql.SQLException

  Creates the packet that contains the query to be sent to the server.

  Parameters:
    `batchedParameterStrings` - the parameters as strings
    `batchedParameterStreams` - the parameters as streams
    `batchedIsStream` - is the given parameter a stream?
    `batchedStreamLengths` - the lengths of the streams (if appropriate)
  Returns:
    a Buffer filled with the query that represents this statement
  Throws:
    `java.sql.SQLException` - if an error occurs.

### getBytesRepresentation

    public byte[] getBytesRepresentation(int parameterIndex)
                                  throws java.sql.SQLException

  DOCUMENT ME!

  Parameters:
    `parameterIndex` - DOCUMENT ME!
  Returns:
    DOCUMENT ME!
  Throws:
    `java.sql.SQLException` - DOCUMENT ME!

### getMetaData

    public java.sql.ResultSetMetaData getMetaData()
                                           throws java.sql.SQLException

  The number, types and properties of a ResultSet's columns are provided by the getMetaData method.

  Specified by:
    `getMetaData` in interface `java.sql.PreparedStatement`
  Returns:
    the description of a ResultSet's columns
  Throws:
    `java.sql.SQLException` - if a database-access error occurs.

### isSelectQuery

    protected boolean isSelectQuery()

### getParameterMetaData

    public java.sql.ParameterMetaData getParameterMetaData()
                                                    throws java.sql.SQLException

  Specified by:
    `getParameterMetaData` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`
  See Also:
    `getParameterMetaData()`

### getParseInfo

    PreparedStatement.ParseInfo getParseInfo()

### isNull

    boolean isNull(int paramIndex)

### realClose

    protected void realClose(boolean calledExplicitly,
                             boolean closeOpenResults)
                      throws java.sql.SQLException

  Closes this statement, releasing all resources

  Overrides:
    `realClose` in class `StatementImpl`
  Parameters:
    `calledExplicitly` - was this called by close()?
  Throws:
    `java.sql.SQLException` - if an error occurs

### setArray

    public void setArray(int i,
                         java.sql.Array x)
                  throws java.sql.SQLException

  JDBC 2.0 Set an Array parameter.

  Specified by:
    `setArray` in interface `java.sql.PreparedStatement`
  Parameters:
    `i` - the first parameter is 1, the second is 2, ...
    `x` - an object representing an SQL array
  Throws:
    `java.sql.SQLException` - because this method is not implemented.
    `NotImplemented` - DOCUMENT ME!

### setAsciiStream

    public void setAsciiStream(int parameterIndex,
                               java.io.InputStream x,
                               int length)
                        throws java.sql.SQLException

  When a very large ASCII value is input to a LONGVARCHAR parameter, it may be more practical to send it via a java.io.InputStream. JDBC will read the data from the stream as needed, until it reaches end-of-file. The JDBC driver will do any necessary conversion from ASCII to the database char format.

  Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.

  Specified by:
    `setAsciiStream` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
    `length` - the number of bytes in the stream
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setBigDecimal

    public void setBigDecimal(int parameterIndex,
                              java.math.BigDecimal x)
                       throws java.sql.SQLException

  Set a parameter to a java.math.BigDecimal value. The driver converts this to a SQL NUMERIC value when it sends it to the database.

  Specified by:
    `setBigDecimal` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setBinaryStream

    public void setBinaryStream(int parameterIndex,
                                java.io.InputStream x,
                                int length)
                         throws java.sql.SQLException

  When a very large binary value is input to a LONGVARBINARY parameter, it may be more practical to send it via a java.io.InputStream. JDBC will read the data from the stream as needed, until it reaches end-of-file.

  Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.

  Specified by:
    `setBinaryStream` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
    `length` - the number of bytes to read from the stream (ignored)
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setBlob

    public void setBlob(int parameterIndex,
                        java.io.InputStream inputStream,
                        long length)
                 throws java.sql.SQLException

  Specified by:
    `setBlob` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setBlob

    public void setBlob(int i,
                        java.sql.Blob x)
                 throws java.sql.SQLException

  JDBC 2.0 Set a BLOB parameter.

  Specified by:
    `setBlob` in interface `java.sql.PreparedStatement`
  Parameters:
    `i` - the first parameter is 1, the second is 2, ...
    `x` - an object representing a BLOB
  Throws:
    `java.sql.SQLException` - if a database error occurs

### setBoolean

    public void setBoolean(int parameterIndex,
                           boolean x)
                    throws java.sql.SQLException

  Set a parameter to a Java boolean value. The driver converts this to a SQL BIT value when it sends it to the database.

  Specified by:
    `setBoolean` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setByte

    public void setByte(int parameterIndex,
                        byte x)
                 throws java.sql.SQLException

  Set a parameter to a Java byte value. The driver converts this to a SQL TINYINT value when it sends it to the database.

  Specified by:
    `setByte` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setBytes

    public void setBytes(int parameterIndex,
                         byte[] x)
                  throws java.sql.SQLException

  Set a parameter to a Java array of bytes. The driver converts this to a SQL VARBINARY or LONGVARBINARY (depending on the argument's size relative to the driver's limits on VARBINARYs) when it sends it to the database.

  Specified by:
    `setBytes` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setBytes

    protected void setBytes(int parameterIndex,
                            byte[] x,
                            boolean checkForIntroducer,
                            boolean escapeForMBChars)
                     throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

### setBytesNoEscape

    protected void setBytesNoEscape(int parameterIndex,
                                    byte[] parameterAsBytes)
                             throws java.sql.SQLException

  Used by updatable result sets for refreshRow() because the parameter has already been escaped for updater or inserter prepared statements.

  Parameters:
    `parameterIndex` - the parameter to set.
    `parameterAsBytes` - the parameter as a string.
  Throws:
    `java.sql.SQLException` - if an error occurs

### setBytesNoEscapeNoQuotes

    protected void setBytesNoEscapeNoQuotes(int parameterIndex,
                                            byte[] parameterAsBytes)
                                     throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

### setCharacterStream

    public void setCharacterStream(int parameterIndex,
                                   java.io.Reader reader,
                                   int length)
                            throws java.sql.SQLException

  JDBC 2.0 When a very large UNICODE value is input to a LONGVARCHAR parameter, it may be more practical to send it via a java.io.Reader. JDBC will read the data from the stream as needed, until it reaches end-of-file. The JDBC driver will do any necessary conversion from UNICODE to the database char format.

  Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.

  Specified by:
    `setCharacterStream` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1, the second is 2, ...
    `reader` - the java reader which contains the UNICODE data
    `length` - the number of characters in the stream
  Throws:
    `java.sql.SQLException` - if a database-access error occurs.

### setClob

    public void setClob(int i,
                        java.sql.Clob x)
                 throws java.sql.SQLException

  JDBC 2.0 Set a CLOB parameter.

  Specified by:
    `setClob` in interface `java.sql.PreparedStatement`
  Parameters:
    `i` - the first parameter is 1, the second is 2, ...
    `x` - an object representing a CLOB
  Throws:
    `java.sql.SQLException` - if a database error occurs

### setDate

    public void setDate(int parameterIndex,
                        java.sql.Date x)
                 throws java.sql.SQLException

  Set a parameter to a java.sql.Date value. The driver converts this to a SQL DATE value when it sends it to the database.

  Specified by:
    `setDate` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setDate

    public void setDate(int parameterIndex,
                        java.sql.Date x,
                        java.util.Calendar cal)
                 throws java.sql.SQLException

  Set a parameter to a java.sql.Date value. The driver converts this to a SQL DATE value when it sends it to the database.

  Specified by:
    `setDate` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1, the second is 2, ...
    `x` - the parameter value
    `cal` - the calendar to interpret the date with
  Throws:
    `java.sql.SQLException` - if a database-access error occurs.

### setDouble

    public void setDouble(int parameterIndex,
                          double x)
                   throws java.sql.SQLException

  Set a parameter to a Java double value. The driver converts this to a SQL DOUBLE value when it sends it to the database

  Specified by:
    `setDouble` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setFloat

    public void setFloat(int parameterIndex,
                         float x)
                  throws java.sql.SQLException

  Set a parameter to a Java float value. The driver converts this to a SQL FLOAT value when it sends it to the database.

  Specified by:
    `setFloat` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setInt

    public void setInt(int parameterIndex,
                       int x)
                throws java.sql.SQLException

  Set a parameter to a Java int value. The driver converts this to a SQL INTEGER value when it sends it to the database.

  Specified by:
    `setInt` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setInternal

    protected final void setInternal(int paramIndex,
                                     byte[] val)
                              throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

### setInternal

    protected final void setInternal(int paramIndex,
                                     java.lang.String val)
                              throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

### setLong

    public void setLong(int parameterIndex,
                        long x)
                 throws java.sql.SQLException

  Set a parameter to a Java long value. The driver converts this to a SQL BIGINT value when it sends it to the database.

  Specified by:
    `setLong` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setNull

    public void setNull(int parameterIndex,
                        int sqlType)
                 throws java.sql.SQLException

  Set a parameter to SQL NULL

  Note: You must specify the parameters SQL type (although MySQL ignores it)

  Specified by:
    `setNull` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1, etc...
    `sqlType` - the SQL type code defined in java.sql.Types
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setNull

    public void setNull(int parameterIndex,
                        int sqlType,
                        java.lang.String arg)
                 throws java.sql.SQLException

  Set a parameter to SQL NULL.

  Note: You must specify the parameter's SQL type.

  Specified by:
    `setNull` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1, the second is 2, ...
    `sqlType` - SQL type code defined by java.sql.Types
    `arg` - argument parameters for null
  Throws:
    `java.sql.SQLException` - if a database-access error occurs.

### setObject

    public void setObject(int parameterIndex,
                          java.lang.Object parameterObj)
                   throws java.sql.SQLException

  DOCUMENT ME!

  Specified by:
    `setObject` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - DOCUMENT ME!
    `parameterObj` - DOCUMENT ME!
  Throws:
    `java.sql.SQLException` - DOCUMENT ME!

### setObject

    public void setObject(int parameterIndex,
                          java.lang.Object parameterObj,
                          int targetSqlType)
                   throws java.sql.SQLException

  DOCUMENT ME!

  Specified by:
    `setObject` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - DOCUMENT ME!
    `parameterObj` - DOCUMENT ME!
    `targetSqlType` - DOCUMENT ME!
  Throws:
    `java.sql.SQLException` - DOCUMENT ME!

### setObject

    public void setObject(int parameterIndex,
                          java.lang.Object parameterObj,
                          int targetSqlType,
                          int scale)
                   throws java.sql.SQLException

  Set the value of a parameter using an object; use the java.lang equivalent objects for integral values.

  The given Java object will be converted to the targetSqlType before being sent to the database.

  note that this method may be used to pass database-specific abstract data types. This is done by using a Driver-specific Java type and using a targetSqlType of java.sql.Types.OTHER

  Specified by:
    `setObject` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `parameterObj` - the object containing the input parameter value
    `targetSqlType` - The SQL type to be send to the database
    `scale` - For java.sql.Types.DECIMAL or java.sql.Types.NUMERIC types this is the number of digits after the decimal. For all other types this value will be ignored.
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setOneBatchedParameterSet

    protected int setOneBatchedParameterSet(java.sql.PreparedStatement batchedStatement,
                                            int batchedParamIndex,
                                            java.lang.Object paramSet)
                                     throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

### setRef

    public void setRef(int i,
                       java.sql.Ref x)
                throws java.sql.SQLException

  JDBC 2.0 Set a REF(<structured-type>) parameter.

  Specified by:
    `setRef` in interface `java.sql.PreparedStatement`
  Parameters:
    `i` - the first parameter is 1, the second is 2, ...
    `x` - an object representing data of an SQL REF Type
  Throws:
    `java.sql.SQLException` - if a database error occurs
    `NotImplemented` - DOCUMENT ME!

### setResultSetConcurrency

    void setResultSetConcurrency(int concurrencyFlag)

  Sets the concurrency for result sets generated by this statement

  Overrides:
    `setResultSetConcurrency` in class `StatementImpl`
  Parameters:
    `concurrencyFlag` - DOCUMENT ME!

### setResultSetType

    void setResultSetType(int typeFlag)

  Sets the result set type for result sets generated by this statement

  Overrides:
    `setResultSetType` in class `StatementImpl`
  Parameters:
    `typeFlag` - DOCUMENT ME!

### setRetrieveGeneratedKeys

    protected void setRetrieveGeneratedKeys(boolean retrieveGeneratedKeys)

  DOCUMENT ME!

  Parameters:
    `retrieveGeneratedKeys` -

### setShort

    public void setShort(int parameterIndex,
                         short x)
                  throws java.sql.SQLException

  Set a parameter to a Java short value. The driver converts this to a SQL SMALLINT value when it sends it to the database.

  Specified by:
    `setShort` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setString

    public void setString(int parameterIndex,
                          java.lang.String x)
                   throws java.sql.SQLException

  Set a parameter to a Java String value. The driver converts this to a SQL VARCHAR or LONGVARCHAR value (depending on the arguments size relative to the driver's limits on VARCHARs) when it sends it to the database.

  Specified by:
    `setString` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setTime

    public void setTime(int parameterIndex,
                        java.sql.Time x,
                        java.util.Calendar cal)
                 throws java.sql.SQLException

  Set a parameter to a java.sql.Time value. The driver converts this to a SQL TIME value when it sends it to the database.

  Specified by:
    `setTime` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1, the second is 2, ...
    `x` - the parameter value
    `cal` - the cal specifying the timezone
  Throws:
    `java.sql.SQLException` - if a database-access error occurs.

### setTime

    public void setTime(int parameterIndex,
                        java.sql.Time x)
                 throws java.sql.SQLException

  Set a parameter to a java.sql.Time value. The driver converts this to a SQL TIME value when it sends it to the database.

  Specified by:
    `setTime` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...));
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setTimestamp

    public void setTimestamp(int parameterIndex,
                             java.sql.Timestamp x,
                             java.util.Calendar cal)
                      throws java.sql.SQLException

  Set a parameter to a java.sql.Timestamp value. The driver converts this to a SQL TIMESTAMP value when it sends it to the database.

  Specified by:
    `setTimestamp` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1, the second is 2, ...
    `x` - the parameter value
    `cal` - the calendar specifying the timezone to use
  Throws:
    `java.sql.SQLException` - if a database-access error occurs.

### setTimestamp

    public void setTimestamp(int parameterIndex,
                             java.sql.Timestamp x)
                      throws java.sql.SQLException

  Set a parameter to a java.sql.Timestamp value. The driver converts this to a SQL TIMESTAMP value when it sends it to the database.

  Specified by:
    `setTimestamp` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setUnicodeStream

    public void setUnicodeStream(int parameterIndex,
                                 java.io.InputStream x,
                                 int length)
                          throws java.sql.SQLException

  Deprecated.

  When a very large Unicode value is input to a LONGVARCHAR parameter, it may be more practical to send it via a java.io.InputStream. JDBC will read the data from the stream as needed, until it reaches end-of-file. The JDBC driver will do any necessary conversion from UNICODE to the database char format.

  Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.

  Specified by:
    `setUnicodeStream` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
    `length` - the number of bytes to read from the stream
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setURL

    public void setURL(int parameterIndex,
                       java.net.URL arg)
                throws java.sql.SQLException

  Specified by:
    `setURL` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`
  See Also:
    `setURL(int, URL)`

### toString

    public java.lang.String toString()

  Returns this PreparedStatement represented as a string.

  Overrides:
    `toString` in class `java.lang.Object`
  Returns:
    this PreparedStatement represented as a string.

### isClosed

    public boolean isClosed()
                     throws java.sql.SQLException

  Specified by:
    `isClosed` in interface `java.sql.Statement`
  Overrides:
    `isClosed` in class `StatementImpl`
  Throws:
    `java.sql.SQLException`

### getParameterIndexOffset

    protected int getParameterIndexOffset()

  For calling stored functions, this will be -1 as we don't really count the first '?' parameter marker, it's only syntax, but JDBC counts it as #1, otherwise it will return 0

### setAsciiStream

    public void setAsciiStream(int parameterIndex,
                               java.io.InputStream x)
                        throws java.sql.SQLException

  Specified by:
    `setAsciiStream` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setAsciiStream

    public void setAsciiStream(int parameterIndex,
                               java.io.InputStream x,
                               long length)
                        throws java.sql.SQLException

  Specified by:
    `setAsciiStream` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setBinaryStream

    public void setBinaryStream(int parameterIndex,
                                java.io.InputStream x)
                         throws java.sql.SQLException

  Specified by:
    `setBinaryStream` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setBinaryStream

    public void setBinaryStream(int parameterIndex,
                                java.io.InputStream x,
                                long length)
                         throws java.sql.SQLException

  Specified by:
    `setBinaryStream` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setBlob

    public void setBlob(int parameterIndex,
                        java.io.InputStream inputStream)
                 throws java.sql.SQLException

  Specified by:
    `setBlob` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setCharacterStream

    public void setCharacterStream(int parameterIndex,
                                   java.io.Reader reader)
                            throws java.sql.SQLException

  Specified by:
    `setCharacterStream` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setCharacterStream

    public void setCharacterStream(int parameterIndex,
                                   java.io.Reader reader,
                                   long length)
                            throws java.sql.SQLException

  Specified by:
    `setCharacterStream` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setClob

    public void setClob(int parameterIndex,
                        java.io.Reader reader)
                 throws java.sql.SQLException

  Specified by:
    `setClob` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setClob

    public void setClob(int parameterIndex,
                        java.io.Reader reader,
                        long length)
                 throws java.sql.SQLException

  Specified by:
    `setClob` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setNCharacterStream

    public void setNCharacterStream(int parameterIndex,
                                    java.io.Reader value)
                             throws java.sql.SQLException

  Specified by:
    `setNCharacterStream` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setNString

    public void setNString(int parameterIndex,
                           java.lang.String x)
                    throws java.sql.SQLException

  Set a parameter to a Java String value. The driver converts this to a SQL VARCHAR or LONGVARCHAR value with introducer _utf8 (depending on the arguments size relative to the driver's limits on VARCHARs) when it sends it to the database. If charset is set as utf8, this method just call setString.

  Specified by:
    `setNString` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1...
    `x` - the parameter value
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### setNCharacterStream

    public void setNCharacterStream(int parameterIndex,
                                    java.io.Reader reader,
                                    long length)
                             throws java.sql.SQLException

  JDBC 2.0 When a very large UNICODE value is input to a LONGVARCHAR parameter, it may be more practical to send it via a java.io.Reader. JDBC will read the data from the stream as needed, until it reaches end-of-file. The JDBC driver will do any necessary conversion from UNICODE to the database char format.

  Note: This stream object can either be a standard Java stream object or your own subclass that implements the standard interface.

  Specified by:
    `setNCharacterStream` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1, the second is 2, ...
    `reader` - the java reader which contains the UNICODE data
    `length` - the number of characters in the stream
  Throws:
    `java.sql.SQLException` - if a database-access error occurs.

### setNClob

    public void setNClob(int parameterIndex,
                         java.io.Reader reader)
                  throws java.sql.SQLException

  Specified by:
    `setNClob` in interface `java.sql.PreparedStatement`
  Throws:
    `java.sql.SQLException`

### setNClob

    public void setNClob(int parameterIndex,
                         java.io.Reader reader,
                         long length)
                  throws java.sql.SQLException

  JDBC 4.0 Set a NCLOB parameter.

  Specified by:
    `setNClob` in interface `java.sql.PreparedStatement`
  Parameters:
    `parameterIndex` - the first parameter is 1, the second is 2, ...
    `reader` - the java reader which contains the UNICODE data
    `length` - the number of characters in the stream
  Throws:
    `java.sql.SQLException` - if a database error occurs

### getParameterBindings

    public ParameterBindings getParameterBindings()
                                           throws java.sql.SQLException

  Throws:
    `java.sql.SQLException`

### getPreparedSql

    public java.lang.String getPreparedSql()

### getUpdateCount

    public int getUpdateCount()
                       throws java.sql.SQLException

  Description copied from class: `StatementImpl`
  getUpdateCount returns the current result as an update count, if the result is a ResultSet or there are no more results, -1 is returned. It should only be called once per result.

  Specified by:
    `getUpdateCount` in interface `java.sql.Statement`
  Overrides:
    `getUpdateCount` in class `StatementImpl`
  Returns:
    the current result as an update count.
  Throws:
    `java.sql.SQLException` - if a database access error occurs

### containsOnDuplicateKeyInString

    protected boolean containsOnDuplicateKeyInString(java.lang.String sql)