com.ibm.ims.db
Class DLIStatement

java.lang.Object
  |
  +--com.ibm.ims.db.DLIStatement
All Implemented Interfaces:
java.sql.Statement
Direct Known Subclasses:
DLIPreparedStatement

public class DLIStatement
extends java.lang.Object
implements java.sql.Statement

The object used for executing a static SQL statement and obtaining the results produced by it.

Only one ResultSet per Statement 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 execute methods implicitly close a statment's current ResultSet if an open one exists.

See Also:
Connection.createStatement(), ResultSet

Constructor Summary
protected DLIStatement(java.sql.Connection connection, DLIConnection dliConnection)
          Creates a DLIStatement Defaults to construction of type FORWARD_ONLY, and concurrency READ_ONLY.
  DLIStatement(java.sql.Connection connection, DLIConnection dliConnection, int resultSetType, int resultSetConcurrency)
          Creates a DLIStatement of specified type and concurrency.
 
Method Summary
 void addBatch(java.lang.String sql)
          This function is not supported JDBC 2.0 Adds a SQL command to the current batch of commmands for the statement.
 void cancel()
          This function is not supported Cancels this Statement object if both the DBMS and driver support aborting an SQL statement.
 void clearBatch()
          This function is not supported JDBC 2.0 Makes the set of commands in the current batch empty.
 void clearWarnings()
          Clears all the warnings reported on this Statement object.
 void close()
          Releases this Statement object's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed.
protected  boolean execute(com.ibm.ims.db.DLIParser parser)
          Executes a SQL statement of unknown type, and returns true if a ResultSet has been generated, false if an update count has been created.
 boolean execute(java.lang.String sql)
          Executes a SQL statement that may return multiple results.
 boolean execute(java.lang.String sql, int autoGeneratedKeys)
          This function is not supported Executes the given SQL statement, which may return multiple results, and signals the driver that any auto-generated keys should be made available for retrieval.
 boolean execute(java.lang.String sql, int[] columnIndexes)
          This function is not supported Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
 boolean execute(java.lang.String sql, java.lang.String[] columnNames)
          This function is not supported Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
 int[] executeBatch()
          This function is not supported JDBC 2.0 Submits a batch of commands to the database for execution.
protected  DLIResultSet executeQuery(com.ibm.ims.db.DLIParser parser)
          This function is only supported to create ResultSets of type TYPE_FORWARD_ONLY and TYPE_SCROLL_INSENSITIVE.
 java.sql.ResultSet executeQuery(java.lang.String sql)
          Executes a SQL statement that returns a single ResultSet.
protected  int executeUpdate(com.ibm.ims.db.DLIParser parser)
          Executes an SQL INSERT, UPDATE or DELETE statement.
 int executeUpdate(java.lang.String sql)
          Executes an SQL INSERT, UPDATE or DELETE statement.
 int executeUpdate(java.lang.String sql, int autoGeneratedKeys)
          This function is not supported Executes the given SQL statement and signals the driver with the given flag about whether the auto-generated keys produced by this Statement object should be made available for retrieval.
 int executeUpdate(java.lang.String sql, int[] columnIndexes)
          This function is not supported Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
 int executeUpdate(java.lang.String sql, java.lang.String[] columnNames)
          This function is not supported Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval.
 java.sql.Connection getConnection()
          JDBC 2.0 Returns the Connection object that produced this Statement object.
 int getFetchDirection()
          This function is not supported JDBC 2.0 Retrieves the direction for fetching rows from database tables that is the default for result sets generated from this Statement object.
 int getFetchSize()
          This function is not supported JDBC 2.0 Retrieves the number of result set rows that is the default fetch size for result sets generated from this Statement object.
 java.sql.ResultSet getGeneratedKeys()
          This function is not supported Retrieves any auto-generated keys created as a result of executing this Statement object.
 int getMaxFieldSize()
          Returns the maximum number of bytes allowed for any column value.
 int getMaxRows()
          Retrieves the maximum number of rows that a ResultSet can contain.
 boolean getMoreResults()
          Moves to a Statement's next result.
 boolean getMoreResults(int current)
          This function is not supported Moves to this Statement object's next result, deals with any current ResultSet object(s) according to the instructions specified by the given flag, and returns true if the next result is a ResultSet object.
 int getQueryTimeout()
          This function is not supported Retrieves the number of seconds the driver will wait for a Statement to execute.
 java.sql.ResultSet getResultSet()
          Returns the current result as a ResultSet object.
 int getResultSetConcurrency()
          This function is not supported JDBC 2.0 Retrieves the result set concurrency.
 int getResultSetHoldability()
          This function is not supported Retrieves the result set holdability for ResultSet objects generated by this Statement object.
 int getResultSetType()
          This function is not supported JDBC 2.0 Determine the result set type.
 int getUpdateCount()
          Returns the current result as an update count; if the result is a ResultSet or there are no more results, -1 is returned.
 java.sql.SQLWarning getWarnings()
          Retrieves the first warning reported by calls on this Statement.
protected  boolean isClosed()
          Returns true if the Statement has been closed.
protected  void resetConnection(java.sql.Connection connection, DLIConnection dliConnection)
          Updates the Connection object when the Statement is being reused (used by PreparedStatements).
 void setCursorName(java.lang.String name)
          This function is not supported Defines the SQL cursor name that will be used by subsequent Statement execute methods.
 void setEscapeProcessing(boolean enable)
          Sets escape processing on or off.
 void setFetchDirection(int direction)
          This function is not supported JDBC 2.0 Gives the driver a hint as to the direction in which the rows in a result set will be processed.
 void setFetchSize(int rows)
          This function is not supported JDBC 2.0 Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed.
 void setMaxFieldSize(int max)
          Sets the limit for the maximum number of bytes in a column to the given number of bytes.
 void setMaxRows(int max)
          Sets the limit for the maximum number of rows that any ResultSet can contain to the given number.
 void setQueryTimeout(int seconds)
          This function is not supported Sets the number of seconds the driver will wait for a Statement to execute to the given number of seconds.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

DLIStatement

protected DLIStatement(java.sql.Connection connection,
                       DLIConnection dliConnection)
Creates a DLIStatement Defaults to construction of type FORWARD_ONLY, and concurrency READ_ONLY.

DLIStatement

public DLIStatement(java.sql.Connection connection,
                    DLIConnection dliConnection,
                    int resultSetType,
                    int resultSetConcurrency)
Creates a DLIStatement of specified type and concurrency.
Method Detail

resetConnection

protected void resetConnection(java.sql.Connection connection,
                               DLIConnection dliConnection)
Updates the Connection object when the Statement is being reused (used by PreparedStatements).

isClosed

protected boolean isClosed()
Returns true if the Statement has been closed.

addBatch

public void addBatch(java.lang.String sql)
              throws java.sql.SQLException
This function is not supported JDBC 2.0 Adds a SQL command to the current batch of commmands for the statement. This method is optional.
Specified by:
addBatch in interface java.sql.Statement
Parameters:
sql - typically this is a static SQL INSERT or UPDATE statement
Throws:
java.sql.SQLException - if a database access error occurs, or the driver does not support batch statements

cancel

public void cancel()
            throws java.sql.SQLException
This function is not supported Cancels this Statement object if both the DBMS and driver support aborting an SQL statement. This method can be used by one thread to cancel a statement that is being executed by another thread.
Specified by:
cancel in interface java.sql.Statement
Throws:
java.sql.SQLException - if a database access error occurs

clearBatch

public void clearBatch()
                throws java.sql.SQLException
This function is not supported JDBC 2.0 Makes the set of commands in the current batch empty. This method is optional.
Specified by:
clearBatch in interface java.sql.Statement
Throws:
java.sql.SQLException - if a database access error occurs or the driver does not support batch statements

clearWarnings

public void clearWarnings()
                   throws java.sql.SQLException
Clears all the warnings reported on this Statement object. After a call to this method, the method getWarnings will return null until a new warning is reported for this Statement.
Specified by:
clearWarnings in interface java.sql.Statement
Throws:
java.sql.SQLException - if a database access error occurs

close

public void close()
           throws java.sql.SQLException
Releases this Statement object's database and JDBC resources immediately instead of waiting for this to happen when it is automatically closed. It is generally good practice to release resources as soon as you are finished with them to avoid tying up database resources.

Note: A Statement is automatically closed when it is garbage collected. When a Statement is closed, its current ResultSet, if one exists, is also closed.

Specified by:
close in interface java.sql.Statement
Throws:
java.sql.SQLException - if a database access error occurs

execute

protected boolean execute(com.ibm.ims.db.DLIParser parser)
                   throws java.sql.SQLException
Executes a SQL statement of unknown type, and returns true if a ResultSet has been generated, false if an update count has been created.
Parameters:
sql - any SQL statement
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

execute

public boolean execute(java.lang.String sql)
                throws java.sql.SQLException
Executes a SQL statement that may return multiple results. Under some (uncommon) situations a single SQL statement may return multiple result sets and/or update counts. Normally you can ignore this unless you are (1) executing a stored procedure that you know may return multiple results or (2) you are dynamically executing an unknown SQL string. The methods execute, getMoreResults, getResultSet, and getUpdateCount let you navigate through multiple results. The execute method executes a SQL statement and indicates the form of the first result. You can then use getResultSet or getUpdateCount to retrieve the result, and getMoreResults to move to any subsequent result(s).
Specified by:
execute in interface java.sql.Statement
Parameters:
sql - any SQL statement
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
See Also:
getResultSet(), getUpdateCount(), getMoreResults()

executeBatch

public int[] executeBatch()
                   throws java.sql.SQLException
This function is not supported JDBC 2.0 Submits a batch of commands to the database for execution. This method is optional.
Specified by:
executeBatch in interface java.sql.Statement
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

executeQuery

protected DLIResultSet executeQuery(com.ibm.ims.db.DLIParser parser)
                             throws java.sql.SQLException
This function is only supported to create ResultSets of type TYPE_FORWARD_ONLY and TYPE_SCROLL_INSENSITIVE. If trying to create TYPE_SCROLL_SENSITIVE type of ResultSet, IMS Java defaults it to TYPE_FORWARD_ONLY. Executes a SQL statement that returns a single ResultSet.
Parameters:
parser - DLIParser class holding all parsed information from SQL
Returns:
a ResultSet that contains the data produced by the query; never null
Throws:
java.sql.SQLException - if a database access error occurs

executeQuery

public java.sql.ResultSet executeQuery(java.lang.String sql)
                                throws java.sql.SQLException
Executes a SQL statement that returns a single ResultSet.
Specified by:
executeQuery in interface java.sql.Statement
Parameters:
sql - typically this is a static SQL SELECT statement
Returns:
a ResultSet that contains the data produced by the query; never null
Throws:
java.sql.SQLException - if a database access error occurs

executeUpdate

protected int executeUpdate(com.ibm.ims.db.DLIParser parser)
                     throws java.sql.SQLException
Executes an SQL INSERT, UPDATE or DELETE statement. In addition, SQL statements that return nothing, such as SQL DDL statements, can be executed.
Parameters:
parser - DLIParser class holding all parsed information from SQL
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

public int executeUpdate(java.lang.String sql)
                  throws java.sql.SQLException
Executes an 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.Statement
Parameters:
sql - a SQL INSERT, UPDATE or DELETE statement or a SQL statement that returns nothing
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

getConnection

public java.sql.Connection getConnection()
                                  throws java.sql.SQLException
JDBC 2.0 Returns the Connection object that produced this Statement object.
Specified by:
getConnection in interface java.sql.Statement
Returns:
the connection that produced this statement
Throws:
java.sql.SQLException - if a database access error occurs

getFetchDirection

public int getFetchDirection()
                      throws java.sql.SQLException
This function is not supported JDBC 2.0 Retrieves the direction for fetching rows from database tables that is the default for result sets generated from this Statement object. If this Statement object has not set a fetch direction by calling the method setFetchDirection, the return value is implementation-specific.
Specified by:
getFetchDirection in interface java.sql.Statement
Returns:
the default fetch direction for result sets generated from this Statement object
Throws:
java.sql.SQLException - if a database access error occurs

getFetchSize

public int getFetchSize()
                 throws java.sql.SQLException
This function is not supported JDBC 2.0 Retrieves the number of result set rows that is the default fetch size for result sets generated from this Statement object. If this Statement object has not set a fetch size by calling the method setFetchSize, the return value is implementation-specific.
Specified by:
getFetchSize in interface java.sql.Statement
Returns:
the default fetch size for result sets generated from this Statement object
Throws:
java.sql.SQLException - if a database access error occurs

getMaxFieldSize

public int getMaxFieldSize()
                    throws java.sql.SQLException
Returns the maximum number of bytes allowed for any column value. This limit is the maximum number of bytes that can be returned for any column value. The limit applies only to BINARY, VARBINARY, LONGVARBINARY, CHAR, VARCHAR, and LONGVARCHAR columns. If the limit is exceeded, the excess data is silently discarded.
Specified by:
getMaxFieldSize in interface java.sql.Statement
Returns:
the current max column size limit; zero means unlimited
Throws:
java.sql.SQLException - if a database access error occurs

getMaxRows

public int getMaxRows()
               throws java.sql.SQLException
Retrieves the maximum number of rows that a ResultSet can contain. If the limit is exceeded, the excess rows are silently dropped.
Specified by:
getMaxRows in interface java.sql.Statement
Returns:
the current max row limit; zero means unlimited
Throws:
java.sql.SQLException - if a database access error occurs

getMoreResults

public boolean getMoreResults()
                       throws java.sql.SQLException
Moves to a Statement's next result. It returns true if this result is a ResultSet. This method also implicitly closes any current ResultSet obtained with getResultSet. There are no more results when (!getMoreResults() && (getUpdateCount() == -1)
Specified by:
getMoreResults in interface java.sql.Statement
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
See Also:
execute(com.ibm.ims.db.DLIParser)

getQueryTimeout

public int getQueryTimeout()
                    throws java.sql.SQLException
This function is not supported Retrieves the number of seconds the driver will wait for a Statement to execute. If the limit is exceeded, a SQLException is thrown.
Specified by:
getQueryTimeout in interface java.sql.Statement
Returns:
the current query timeout limit in seconds; zero means unlimited
Throws:
java.sql.SQLException - if a database access error occurs

getResultSet

public java.sql.ResultSet getResultSet()
                                throws java.sql.SQLException
Returns the current result as a ResultSet object. This method should be called only once per result.
Specified by:
getResultSet in interface java.sql.Statement
Returns:
the current result as a ResultSet; null if the result is an update count or there are no more results
Throws:
java.sql.SQLException - if a database access error occurs
See Also:
execute(com.ibm.ims.db.DLIParser)

getResultSetConcurrency

public int getResultSetConcurrency()
                            throws java.sql.SQLException
This function is not supported JDBC 2.0 Retrieves the result set concurrency.
Specified by:
getResultSetConcurrency in interface java.sql.Statement

getResultSetType

public int getResultSetType()
                     throws java.sql.SQLException
This function is not supported JDBC 2.0 Determine the result set type.
Specified by:
getResultSetType in interface java.sql.Statement

getUpdateCount

public int getUpdateCount()
                   throws java.sql.SQLException
Returns the current result as an update count; if the result is a ResultSet or there are no more results, -1 is returned. This method should be called only once per result.
Specified by:
getUpdateCount in interface java.sql.Statement
Returns:
the current result as an update count; -1 if it is a ResultSet or there are no more results
Throws:
java.sql.SQLException - if a database access error occurs
See Also:
execute(com.ibm.ims.db.DLIParser)

getWarnings

public java.sql.SQLWarning getWarnings()
                                throws java.sql.SQLException
Retrieves the first warning reported by calls on this Statement. Subsequent Statement warnings will be chained to this SQLWarning.

The warning chain is automatically cleared each time a statement is (re)executed.

Note: If you are processing a ResultSet, any warnings associated with ResultSet reads will be chained on the ResultSet object.

Specified by:
getWarnings in interface java.sql.Statement
Returns:
the first SQLWarning or null
Throws:
java.sql.SQLException - if a database access error occurs

setCursorName

public void setCursorName(java.lang.String name)
                   throws java.sql.SQLException
This function is not supported Defines the SQL cursor name that will be used by subsequent Statement execute methods. 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 doesn't support positioned update/delete, this method 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.

Note: 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.

Specified by:
setCursorName in interface java.sql.Statement
Parameters:
name - the new cursor name, which must be unique within a connection
Throws:
java.sql.SQLException - if a database access error occurs

setEscapeProcessing

public void setEscapeProcessing(boolean enable)
                         throws java.sql.SQLException
Sets escape processing on or off. If escape scanning is on (the default), the driver will do escape substitution before sending the SQL to the database. Note: Since prepared statements have usually been parsed prior to making this call, disabling escape processing for prepared statements will have no effect.
Specified by:
setEscapeProcessing in interface java.sql.Statement
Parameters:
enable - true to enable; false to disable
Throws:
java.sql.SQLException - if a database access error occurs

setFetchDirection

public void setFetchDirection(int direction)
                       throws java.sql.SQLException
This function is not supported JDBC 2.0 Gives the driver a hint as to the direction in which the rows in a result set will be processed. The hint applies only to result sets created using this Statement object. The default value is ResultSet.FETCH_FORWARD.

Note that this method sets the default fetch direction for result sets generated by this Statement object. Each result set has its own methods for getting and setting its own fetch direction.

Specified by:
setFetchDirection in interface java.sql.Statement
Parameters:
direction - the initial direction for processing rows
Throws:
java.sql.SQLException - if a database access error occurs or the given direction is not one of ResultSet.FETCH_FORWARD, ResultSet.FETCH_REVERSE, or ResultSet.FETCH_UNKNOWN

setFetchSize

public void setFetchSize(int rows)
                  throws java.sql.SQLException
This function is not supported JDBC 2.0 Gives the JDBC driver a hint as to the number of rows that should be fetched from the database when more rows are needed. The number of rows specified affects only result sets created using this statement. If the value specified is zero, then the hint is ignored. The default value is zero.
Specified by:
setFetchSize in interface java.sql.Statement
Parameters:
rows - the number of rows to fetch
Throws:
java.sql.SQLException - if a database access error occurs, or the condition 0 <= rows <= this.getMaxRows() is not satisfied.

setMaxFieldSize

public void setMaxFieldSize(int max)
                     throws java.sql.SQLException
Sets the limit for the maximum number of bytes in a column to the given number of bytes. This is the maximum number of bytes that can be returned for any column value. This limit applies only to BINARY, VARBINARY, LONGVARBINARY, CHAR, VARCHAR, and LONGVARCHAR fields. If the limit is exceeded, the excess data is silently discarded. For maximum portability, use values greater than 256.
Specified by:
setMaxFieldSize in interface java.sql.Statement
Parameters:
max - the new max column size limit; zero means unlimited
Throws:
java.sql.SQLException - if a database access error occurs

setMaxRows

public void setMaxRows(int max)
                throws java.sql.SQLException
Sets the limit for the maximum number of rows that any ResultSet can contain to the given number. If the limit is exceeded, the excess rows are silently dropped.
Specified by:
setMaxRows in interface java.sql.Statement
Parameters:
max - the new max rows limit; zero means unlimited
Throws:
java.sql.SQLException - if a database access error occurs

setQueryTimeout

public void setQueryTimeout(int seconds)
                     throws java.sql.SQLException
This function is not supported Sets the number of seconds the driver will wait for a Statement to execute to the given number of seconds. If the limit is exceeded, a SQLException is thrown.
Specified by:
setQueryTimeout in interface java.sql.Statement
Parameters:
seconds - the new query timeout limit in seconds; zero means unlimited
Throws:
java.sql.SQLException - if a database access error occurs

getMoreResults

public boolean getMoreResults(int current)
                       throws java.sql.SQLException
This function is not supported Moves to this Statement object's next result, deals with any current ResultSet object(s) according to the instructions specified by the given flag, and returns true if the next result is a ResultSet object.

There are no more results when the following is true:

      (!getMoreResults() && (getUpdateCount() == -1)
 
Parameters:
current - one of the following Statement constants indicating what should happen to current ResultSet objects obtained using the method getResultSetCLOSE_CURRENT_RESULT, KEEP_CURRENT_RESULT, or CLOSE_ALL_RESULTS
Returns:
true if the next result is a ResultSet object; false if it is an update count or there are no more results
Throws:
java.sql.SQLException - if a database access error occurs
Since:
1.4
See Also:
execute(com.ibm.ims.db.DLIParser)

getGeneratedKeys

public java.sql.ResultSet getGeneratedKeys()
                                    throws java.sql.SQLException
This function is not supported Retrieves any auto-generated keys created as a result of executing this Statement object. If this Statement object did not generate any keys, an empty ResultSet object is returned.
Returns:
a ResultSet object containing the auto-generated key(s) generated by the execution of this Statement object
Throws:
java.sql.SQLException - if a database access error occurs
Since:
1.4

executeUpdate

public int executeUpdate(java.lang.String sql,
                         int autoGeneratedKeys)
                  throws java.sql.SQLException
This function is not supported Executes the given SQL statement and signals the driver with the given flag about whether the auto-generated keys produced by this Statement object should be made available for retrieval.
Parameters:
sql - must be an SQL INSERT, UPDATE or DELETE statement or an SQL statement that returns nothing
autoGeneratedKeys - a flag indicating whether auto-generated keys should be made available for retrieval; one of the following constants: Statement.RETURN_GENERATED_KEYS Statement.NO_GENERATED_KEYS
Returns:
either the row count for INSERT, UPDATE or DELETE statements, or 0 for SQL statements that return nothing
Throws:
java.sql.SQLException - if a database access error occurs, the given SQL statement returns a ResultSet object, or the given constant is not one of those allowed
Since:
1.4

executeUpdate

public int executeUpdate(java.lang.String sql,
                         int[] columnIndexes)
                  throws java.sql.SQLException
This function is not supported Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. The driver will ignore the array if the SQL statement is not an INSERT statement.
Parameters:
sql - an SQL INSERT, UPDATE or DELETE statement or an SQL statement that returns nothing, such as an SQL DDL statement
columnIndexes - an array of column indexes indicating the columns that should be returned from the inserted row
Returns:
either the row count for INSERT, UPDATE, or DELETE statements, or 0 for SQL statements that return nothing
Throws:
java.sql.SQLException - if a database access error occurs or the SQL statement returns a ResultSet object
Since:
1.4

executeUpdate

public int executeUpdate(java.lang.String sql,
                         java.lang.String[] columnNames)
                  throws java.sql.SQLException
This function is not supported Executes the given SQL statement and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. The driver will ignore the array if the SQL statement is not an INSERT statement.
Parameters:
sql - an SQL INSERT, UPDATE or DELETE statement or an SQL statement that returns nothing
columnNames - an array of the names of the columns that should be returned from the inserted row
Returns:
either the row count for INSERT, UPDATE, or DELETE statements, or 0 for SQL statements that return nothing
Throws:
java.sql.SQLException - if a database access error occurs
Since:
1.4

execute

public boolean execute(java.lang.String sql,
                       int autoGeneratedKeys)
                throws java.sql.SQLException
This function is not supported Executes the given SQL statement, which may return multiple results, and signals the driver that any auto-generated keys should be made available for retrieval. The driver will ignore this signal if the SQL statement is not an INSERT statement.

In some (uncommon) situations, a single SQL statement may return multiple result sets and/or update counts. Normally you can ignore this unless you are (1) executing a stored procedure that you know may return multiple results or (2) you are dynamically executing an unknown SQL string.

The execute method executes an SQL statement and indicates the form of the first result. You must then use the methods getResultSet or getUpdateCount to retrieve the result, and getMoreResults to move to any subsequent result(s).

Parameters:
sql - any SQL statement
autoGeneratedKeys - a constant indicating whether auto-generated keys should be made available for retrieval using the method getGeneratedKeys; one of the following constants: Statement.RETURN_GENERATED_KEYS or Statement.NO_GENERATED_KEYS
Returns:
true if the first result is a ResultSet object; false if it is an update count or there are no results
Throws:
java.sql.SQLException - if a database access error occurs
Since:
1.4
See Also:
getResultSet(), getUpdateCount(), getMoreResults(), getGeneratedKeys()

execute

public boolean execute(java.lang.String sql,
                       int[] columnIndexes)
                throws java.sql.SQLException
This function is not supported Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. This array contains the indexes of the columns in the target table that contain the auto-generated keys that should be made available. The driver will ignore the array if the given SQL statement is not an INSERT statement.

Under some (uncommon) situations, a single SQL statement may return multiple result sets and/or update counts. Normally you can ignore this unless you are (1) executing a stored procedure that you know may return multiple results or (2) you are dynamically executing an unknown SQL string.

The execute method executes an SQL statement and indicates the form of the first result. You must then use the methods getResultSet or getUpdateCount to retrieve the result, and getMoreResults to move to any subsequent result(s).

Parameters:
sql - any SQL statement
columnIndexes - an array of the indexes of the columns in the inserted row that should be made available for retrieval by a call to the method getGeneratedKeys
Returns:
true if the first result is a ResultSet object; false if it is an update count or there are no results
Throws:
java.sql.SQLException - if a database access error occurs
Since:
1.4
See Also:
getResultSet(), getUpdateCount(), getMoreResults()

execute

public boolean execute(java.lang.String sql,
                       java.lang.String[] columnNames)
                throws java.sql.SQLException
This function is not supported Executes the given SQL statement, which may return multiple results, and signals the driver that the auto-generated keys indicated in the given array should be made available for retrieval. This array contains the names of the columns in the target table that contain the auto-generated keys that should be made available. The driver will ignore the array if the given SQL statement is not an INSERT statement.

In some (uncommon) situations, a single SQL statement may return multiple result sets and/or update counts. Normally you can ignore this unless you are (1) executing a stored procedure that you know may return multiple results or (2) you are dynamically executing an unknown SQL string.

The execute method executes an SQL statement and indicates the form of the first result. You must then use the methods getResultSet or getUpdateCount to retrieve the result, and getMoreResults to move to any subsequent result(s).

Parameters:
sql - any SQL statement
columnNames - an array of the names of the columns in the inserted row that should be made available for retrieval by a call to the method getGeneratedKeys
Returns:
true if the next result is a ResultSet object; false if it is an update count or there are no more results
Throws:
java.sql.SQLException - if a database access error occurs
Since:
1.4
See Also:
getResultSet(), getUpdateCount(), getMoreResults(), getGeneratedKeys()

getResultSetHoldability

public int getResultSetHoldability()
                            throws java.sql.SQLException
This function is not supported Retrieves the result set holdability for ResultSet objects generated by this Statement object.
Returns:
either ResultSet.HOLD_CURSORS_OVER_COMMIT or ResultSet.CLOSE_CURSORS_AT_COMMIT
Throws:
java.sql.SQLException - if a database access error occurs
Since:
1.4


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