A connection (session) with a specific * database. SQL statements are executed and results are returned * within the context of a connection. *
* A Connection object's database is able to provide information
* describing its tables, its supported SQL grammar, its stored
* procedures, the capabilities of this connection, and so on. This
* information is obtained with the getMetaData method.
*
*
Note: By default a Connection object is in
* auto-commit mode, which means that it automatically commits changes
* after executing each statement. If auto-commit mode has been
* disabled, the method commit must be called explicitly in
* order to commit changes; otherwise, database changes will not be saved.
*
* A new Connection object created using the JDBC 2.1 core API
* has an initially empty type map associated with it. A user may enter a
* custom mapping for a UDT in this type map.
* When a UDT is retrieved from a data source with the
* method ResultSet.getObject, the getObject method
* will check the connection's type map to see if there is an entry for that
* UDT. If so, the getObject method will map the UDT to the
* class indicated. If there is no entry, the UDT will be mapped using the
* standard mapping.
*
* A user may create a new type map, which is a java.util.Map
* object, make an entry in it, and pass it to the java.sql
* methods that can perform custom mapping. In this case, the method
* will use the given type map instead of the one associated with
* the connection.
*
* For example, the following code fragment specifies that the SQL
* type ATHLETES will be mapped to the class
* Athletes in the Java programming language.
* The code fragment retrieves the type map for the Connection
* object con, inserts the entry into it, and then sets
* the type map with the new entry as the connection's type map.
*
* java.util.Map map = con.getTypeMap();
* map.put("mySchemaName.ATHLETES", Class.forName("Athletes"));
* con.setTypeMap(map);
*
*
* @see DriverManager#getConnection
* @see Statement
* @see ResultSet
* @see DatabaseMetaData
*/
public interface Connection {
/**
* Creates a Statement object for sending
* SQL statements to the database.
* SQL statements without parameters are normally
* executed using Statement objects. If the same SQL statement
* is executed many times, it may be more efficient to use a
* PreparedStatement object.
*
* Result sets created using the returned Statement
* object will by default be type TYPE_FORWARD_ONLY
* and have a concurrency level of CONCUR_READ_ONLY.
*
* @return a new default Statement object
* @exception SQLException if a database access error occurs
*/
Statement createStatement() throws SQLException;
/**
* Creates a PreparedStatement object for sending
* parameterized SQL statements to the database.
*
* A SQL statement with or without IN parameters can be
* pre-compiled and stored in a PreparedStatement object. This
* object can then be used to efficiently execute this statement
* multiple times.
*
*
Note: This method is optimized for handling
* parametric SQL statements that benefit from precompilation. If
* the driver supports precompilation,
* the method prepareStatement will send
* the statement to the database for precompilation. Some drivers
* may not support precompilation. In this case, the statement may
* not be sent to the database until the PreparedStatement
* object is executed. This has no direct effect on users; however, it does
* affect which methods throw certain SQLException objects.
*
* Result sets created using the returned PreparedStatement
* object will by default be type TYPE_FORWARD_ONLY
* and have a concurrency level of CONCUR_READ_ONLY.
*
* @param sql an SQL statement that may contain one or more '?' IN
* parameter placeholders
* @return a new default PreparedStatement object containing the
* pre-compiled SQL statement
* @exception SQLException if a database access error occurs
*/
PreparedStatement prepareStatement(String sql)
throws SQLException;
/**
* Creates a CallableStatement object for calling
* database stored procedures.
* The CallableStatement object provides
* methods for setting up its IN and OUT parameters, and
* methods for executing the call to a stored procedure.
*
*
Note: This method is optimized for handling stored
* procedure call statements. Some drivers may send the call
* statement to the database when the method prepareCall
* is done; others
* may wait until the CallableStatement object
* is executed. This has no
* direct effect on users; however, it does affect which method
* throws certain SQLExceptions.
*
* Result sets created using the returned CallableStatement
* object will by default be type TYPE_FORWARD_ONLY
* and have a concurrency level of CONCUR_READ_ONLY.
*
* @param sql an SQL statement that may contain one or more '?'
* parameter placeholders. Typically this statement is a JDBC
* function call escape string.
* @return a new default CallableStatement object containing the
* pre-compiled SQL statement
* @exception SQLException if a database access error occurs
*/
CallableStatement prepareCall(String sql) throws SQLException;
/**
* Converts the given SQL statement into the system's native SQL grammar.
* A driver may convert the JDBC SQL grammar into its system's
* native SQL grammar prior to sending it. This method returns the
* native form of the statement that the driver would have sent.
*
* @param sql an SQL statement that may contain one or more '?'
* parameter placeholders
* @return the native form of this statement
* @exception SQLException if a database access error occurs
*/
String nativeSQL(String sql) throws SQLException;
/**
* Sets this connection's auto-commit mode to the given state.
* If a connection is in auto-commit mode, then all its SQL
* statements will be executed and committed as individual
* transactions. Otherwise, its SQL statements are grouped into
* transactions that are terminated by a call to either
* the method commit or the method rollback.
* By default, new connections are in auto-commit
* mode.
*
* The commit occurs when the statement completes or the next
* execute occurs, whichever comes first. In the case of
* statements returning a ResultSet object,
* the statement completes when the last row of the
* ResultSet object has been retrieved or the
* ResultSet object has been closed. In advanced cases, a single
* statement may return multiple results as well as output
* parameter values. In these cases, the commit occurs when all results and
* output parameter values have been retrieved.
*
* NOTE: If this method is called during a transaction, the
* transaction is committed.
*
* @param autoCommit true to enable auto-commit mode;
* false to disable it
* @exception SQLException if a database access error occurs
* @see #getAutoCommit
*/
void setAutoCommit(boolean autoCommit) throws SQLException;
/**
* Retrieves the current auto-commit mode for this Connection
* object.
*
* @return the current state of this Connection object's
* auto-commit mode
* @exception SQLException if a database access error occurs
* @see #setAutoCommit
*/
boolean getAutoCommit() throws SQLException;
/**
* Makes all changes made since the previous
* commit/rollback permanent and releases any database locks
* currently held by this Connection object.
* This method should be
* used only when auto-commit mode has been disabled.
*
* @exception SQLException if a database access error occurs or this
* Connection object is in auto-commit mode
* @see #setAutoCommit
*/
void commit() throws SQLException;
/**
* Undoes all changes made in the current transaction
* and releases any database locks currently held
* by this Connection object. This method should be
* used only when auto-commit mode has been disabled.
*
* @exception SQLException if a database access error occurs or this
* Connection object is in auto-commit mode
* @see #setAutoCommit
*/
void rollback() throws SQLException;
/**
* Releases this Connection object's database and JDBC resources
* immediately instead of waiting for them to be automatically released.
*
* Calling the method close on a Connection
* object that is already closed is a no-op.
*
* Note: A Connection object is automatically
* closed when it is garbage collected. Certain fatal errors also
* close a Connection object.
*
* @exception SQLException if a database access error occurs
*/
void close() throws SQLException;
/**
* Retrieves whether this Connection object has been
* closed. A connection is closed if the method close
* has been called on it or if certain fatal errors have occurred.
* This method is guaranteed to return true only when
* it is called after the method Connection.close has
* been called.
*
* This method generally cannot be called to determine whether a
* connection to a database is valid or invalid. A typical client
* can determine that a connection is invalid by catching any
* exceptions that might be thrown when an operation is attempted.
*
* @return true if this Connection object
* is closed; false if it is still open
* @exception SQLException if a database access error occurs
*/
boolean isClosed() throws SQLException;
//======================================================================
// Advanced features:
/**
* Retrieves a DatabaseMetaData object that contains
* metadata about the database to which this
* Connection object represents a connection.
* The metadata includes information about the database's
* tables, its supported SQL grammar, its stored
* procedures, the capabilities of this connection, and so on.
*
* @return a DatabaseMetaData object for this
* Connection object
* @exception SQLException if a database access error occurs
*/
DatabaseMetaData getMetaData() throws SQLException;
/**
* Puts this connection in read-only mode as a hint to the driver to enable
* database optimizations.
*
*
Note: This method cannot be called during a transaction.
*
* @param readOnly true enables read-only mode;
* false disables it
* @exception SQLException if a database access error occurs or this
* method is called during a transaction
*/
void setReadOnly(boolean readOnly) throws SQLException;
/**
* Retrieves whether this Connection
* object is in read-only mode.
*
* @return true if this Connection object
* is read-only; false otherwise
* @exception SQLException if a database access error occurs
*/
boolean isReadOnly() throws SQLException;
/**
* Sets the given catalog name in order to select
* a subspace of this Connection object's database
* in which to work.
*
* If the driver does not support catalogs, it will
* silently ignore this request.
*
* @param catalog the name of a catalog (subspace in this
* Connection object's database) in which to work
* @exception SQLException if a database access error occurs
* @see #getCatalog
*/
void setCatalog(String catalog) throws SQLException;
/**
* Retrieves this Connection object's current catalog name.
*
* @return the current catalog name or null if there is none
* @exception SQLException if a database access error occurs
* @see #setCatalog
*/
String getCatalog() throws SQLException;
/**
* A constant indicating that transactions are not supported.
*/
int TRANSACTION_NONE = 0;
/**
* A constant indicating that
* dirty reads, non-repeatable reads and phantom reads can occur.
* This level allows a row changed by one transaction to be read
* by another transaction before any changes in that row have been
* committed (a "dirty read"). If any of the changes are rolled back,
* the second transaction will have retrieved an invalid row.
*/
int TRANSACTION_READ_UNCOMMITTED = 1;
/**
* A constant indicating that
* dirty reads are prevented; non-repeatable reads and phantom
* reads can occur. This level only prohibits a transaction
* from reading a row with uncommitted changes in it.
*/
int TRANSACTION_READ_COMMITTED = 2;
/**
* A constant indicating that
* dirty reads and non-repeatable reads are prevented; phantom
* reads can occur. This level prohibits a transaction from
* reading a row with uncommitted changes in it, and it also
* prohibits the situation where one transaction reads a row,
* a second transaction alters the row, and the first transaction
* rereads the row, getting different values the second time
* (a "non-repeatable read").
*/
int TRANSACTION_REPEATABLE_READ = 4;
/**
* A constant indicating that
* dirty reads, non-repeatable reads and phantom reads are prevented.
* This level includes the prohibitions in
* TRANSACTION_REPEATABLE_READ and further prohibits the
* situation where one transaction reads all rows that satisfy
* a WHERE condition, a second transaction inserts a row that
* satisfies that WHERE condition, and the first transaction
* rereads for the same condition, retrieving the additional
* "phantom" row in the second read.
*/
int TRANSACTION_SERIALIZABLE = 8;
/**
* Attempts to change the transaction isolation level for this
* Connection object to the one given.
* The constants defined in the interface Connection
* are the possible transaction isolation levels.
*
* Note: If this method is called during a transaction, the result
* is implementation-defined.
*
* @param level one of the following Connection constants:
* Connection.TRANSACTION_READ_UNCOMMITTED,
* Connection.TRANSACTION_READ_COMMITTED,
* Connection.TRANSACTION_REPEATABLE_READ, or
* Connection.TRANSACTION_SERIALIZABLE.
* (Note that Connection.TRANSACTION_NONE cannot be used
* because it specifies that transactions are not supported.)
* @exception SQLException if a database access error occurs
* or the given parameter is not one of the Connection
* constants
* @see DatabaseMetaData#supportsTransactionIsolationLevel
* @see #getTransactionIsolation
*/
void setTransactionIsolation(int level) throws SQLException;
/**
* Retrieves this Connection object's current
* transaction isolation level.
*
* @return the current transaction isolation level, which will be one
* of the following constants:
* Connection.TRANSACTION_READ_UNCOMMITTED,
* Connection.TRANSACTION_READ_COMMITTED,
* Connection.TRANSACTION_REPEATABLE_READ,
* Connection.TRANSACTION_SERIALIZABLE, or
* Connection.TRANSACTION_NONE.
* @exception SQLException if a database access error occurs
* @see #setTransactionIsolation
*/
int getTransactionIsolation() throws SQLException;
/**
* Retrieves the first warning reported by calls on this
* Connection object. If there is more than one
* warning, subsequent warnings will be chained to the first one
* and can be retrieved by calling the method
* SQLWarning.getNextWarning on the warning
* that was retrieved previously.
*
* This method may not be
* called on a closed connection; doing so will cause an
* SQLException to be thrown.
*
*
Note: Subsequent warnings will be chained to this
* SQLWarning.
*
* @return the first
* This method should be used only when auto-commit has been disabled.
*
* @param savepoint the
* This method is the same as the
* Note: This method is optimized for handling
* parametric SQL statements that benefit from precompilation. If
* the driver supports precompilation,
* the method
* Result sets created using the returned
* An SQL statement with or without IN parameters can be
* pre-compiled and stored in a
* Note: This method is optimized for handling
* parametric SQL statements that benefit from precompilation. If
* the driver supports precompilation,
* the method
* Result sets created using the returned
* An SQL statement with or without IN parameters can be
* pre-compiled and stored in a
* Note: This method is optimized for handling
* parametric SQL statements that benefit from precompilation. If
* the driver supports precompilation,
* the method
* Result sets created using the returned SQLWarning object or null
* if there are none
* @exception SQLException if a database access error occurs or
* this method is called on a closed connection
* @see SQLWarning
*/
SQLWarning getWarnings() throws SQLException;
/**
* Clears all warnings reported for this Connection object.
* After a call to this method, the method getWarnings
* returns null until a new warning is
* reported for this Connection object.
*
* @exception SQLException if a database access error occurs
*/
void clearWarnings() throws SQLException;
//--------------------------JDBC 2.0-----------------------------
/**
* Creates a Statement object that will generate
* ResultSet objects with the given type and concurrency.
* This method is the same as the createStatement method
* above, but it allows the default result set
* type and concurrency to be overridden.
*
* @param resultSetType a result set type; one of
* ResultSet.TYPE_FORWARD_ONLY,
* ResultSet.TYPE_SCROLL_INSENSITIVE, or
* ResultSet.TYPE_SCROLL_SENSITIVE
* @param resultSetConcurrency a concurrency type; one of
* ResultSet.CONCUR_READ_ONLY or
* ResultSet.CONCUR_UPDATABLE
* @return a new Statement object that will generate
* ResultSet objects with the given type and
* concurrency
* @exception SQLException if a database access error occurs
* or the given parameters are not ResultSet
* constants indicating type and concurrency
* @since 1.2
*/
Statement createStatement(int resultSetType, int resultSetConcurrency)
throws SQLException;
/**
*
* Creates a PreparedStatement object that will generate
* ResultSet objects with the given type and concurrency.
* This method is the same as the prepareStatement method
* above, but it allows the default result set
* type and concurrency to be overridden.
*
* @param sql a String object that is the SQL statement to
* be sent to the database; may contain one or more ? IN
* parameters
* @param resultSetType a result set type; one of
* ResultSet.TYPE_FORWARD_ONLY,
* ResultSet.TYPE_SCROLL_INSENSITIVE, or
* ResultSet.TYPE_SCROLL_SENSITIVE
* @param resultSetConcurrency a concurrency type; one of
* ResultSet.CONCUR_READ_ONLY or
* ResultSet.CONCUR_UPDATABLE
* @return a new PreparedStatement object containing the
* pre-compiled SQL statement that will produce ResultSet
* objects with the given type and concurrency
* @exception SQLException if a database access error occurs
* or the given parameters are not ResultSet
* constants indicating type and concurrency
* @since 1.2
*/
PreparedStatement prepareStatement(String sql, int resultSetType,
int resultSetConcurrency)
throws SQLException;
/**
* Creates a CallableStatement object that will generate
* ResultSet objects with the given type and concurrency.
* This method is the same as the prepareCall method
* above, but it allows the default result set
* type and concurrency to be overridden.
*
* @param sql a String object that is the SQL statement to
* be sent to the database; may contain on or more ? parameters
* @param resultSetType a result set type; one of
* ResultSet.TYPE_FORWARD_ONLY,
* ResultSet.TYPE_SCROLL_INSENSITIVE, or
* ResultSet.TYPE_SCROLL_SENSITIVE
* @param resultSetConcurrency a concurrency type; one of
* ResultSet.CONCUR_READ_ONLY or
* ResultSet.CONCUR_UPDATABLE
* @return a new CallableStatement object containing the
* pre-compiled SQL statement that will produce ResultSet
* objects with the given type and concurrency
* @exception SQLException if a database access error occurs
* or the given parameters are not ResultSet
* constants indicating type and concurrency
* @since 1.2
*/
CallableStatement prepareCall(String sql, int resultSetType,
int resultSetConcurrency) throws SQLException;
/**
* Retrieves the Map object associated with this
* Connection object.
* Unless the application has added an entry, the type map returned
* will be empty.
*
* @return the java.util.Map object associated
* with this Connection object
* @exception SQLException if a database access error occurs
* @since 1.2
* @see #setTypeMap
*/
java.util.MapTypeMap object as the type map for
* this Connection object. The type map will be used for the
* custom mapping of SQL structured types and distinct types.
*
* @param map the java.util.Map object to install
* as the replacement for this Connection
* object's default type map
* @exception SQLException if a database access error occurs or
* the given parameter is not a java.util.Map
* object
* @since 1.2
* @see #getTypeMap
*/
void setTypeMap(java.util.MapResultSet objects
* created using this Connection object to the given
* holdability.
*
* @param holdability a ResultSet holdability constant; one of
* ResultSet.HOLD_CURSORS_OVER_COMMIT or
* ResultSet.CLOSE_CURSORS_AT_COMMIT
* @throws SQLException if a database access occurs, the given parameter
* is not a ResultSet constant indicating holdability,
* or the given holdability is not supported
* @see #getHoldability
* @see ResultSet
* @since 1.4
*/
void setHoldability(int holdability) throws SQLException;
/**
* Retrieves the current holdability of ResultSet objects
* created using this Connection object.
*
* @return the holdability, one of
* ResultSet.HOLD_CURSORS_OVER_COMMIT or
* ResultSet.CLOSE_CURSORS_AT_COMMIT
* @throws SQLException if a database access occurs
* @see #setHoldability
* @see ResultSet
* @since 1.4
*/
int getHoldability() throws SQLException;
/**
* Creates an unnamed savepoint in the current transaction and
* returns the new Savepoint object that represents it.
*
* @return the new Savepoint object
* @exception SQLException if a database access error occurs
* or this Connection object is currently in
* auto-commit mode
* @see Savepoint
* @since 1.4
*/
Savepoint setSavepoint() throws SQLException;
/**
* Creates a savepoint with the given name in the current transaction
* and returns the new Savepoint object that represents it.
*
* @param name a String containing the name of the savepoint
* @return the new Savepoint object
* @exception SQLException if a database access error occurs
* or this Connection object is currently in
* auto-commit mode
* @see Savepoint
* @since 1.4
*/
Savepoint setSavepoint(String name) throws SQLException;
/**
* Undoes all changes made after the given Savepoint object
* was set.
* Savepoint object to roll back to
* @exception SQLException if a database access error occurs,
* the Savepoint object is no longer valid,
* or this Connection object is currently in
* auto-commit mode
* @see Savepoint
* @see #rollback
* @since 1.4
*/
void rollback(Savepoint savepoint) throws SQLException;
/**
* Removes the given Savepoint object from the current
* transaction. Any reference to the savepoint after it have been removed
* will cause an SQLException to be thrown.
*
* @param savepoint the Savepoint object to be removed
* @exception SQLException if a database access error occurs or
* the given Savepoint object is not a valid
* savepoint in the current transaction
* @since 1.4
*/
void releaseSavepoint(Savepoint savepoint) throws SQLException;
/**
* Creates a Statement object that will generate
* ResultSet objects with the given type, concurrency,
* and holdability.
* This method is the same as the createStatement method
* above, but it allows the default result set
* type, concurrency, and holdability to be overridden.
*
* @param resultSetType one of the following ResultSet
* constants:
* ResultSet.TYPE_FORWARD_ONLY,
* ResultSet.TYPE_SCROLL_INSENSITIVE, or
* ResultSet.TYPE_SCROLL_SENSITIVE
* @param resultSetConcurrency one of the following ResultSet
* constants:
* ResultSet.CONCUR_READ_ONLY or
* ResultSet.CONCUR_UPDATABLE
* @param resultSetHoldability one of the following ResultSet
* constants:
* ResultSet.HOLD_CURSORS_OVER_COMMIT or
* ResultSet.CLOSE_CURSORS_AT_COMMIT
* @return a new Statement object that will generate
* ResultSet objects with the given type,
* concurrency, and holdability
* @exception SQLException if a database access error occurs
* or the given parameters are not ResultSet
* constants indicating type, concurrency, and holdability
* @see ResultSet
* @since 1.4
*/
Statement createStatement(int resultSetType, int resultSetConcurrency,
int resultSetHoldability) throws SQLException;
/**
* Creates a PreparedStatement object that will generate
* ResultSet objects with the given type, concurrency,
* and holdability.
* prepareStatement method
* above, but it allows the default result set
* type, concurrency, and holdability to be overridden.
*
* @param sql a String object that is the SQL statement to
* be sent to the database; may contain one or more ? IN
* parameters
* @param resultSetType one of the following ResultSet
* constants:
* ResultSet.TYPE_FORWARD_ONLY,
* ResultSet.TYPE_SCROLL_INSENSITIVE, or
* ResultSet.TYPE_SCROLL_SENSITIVE
* @param resultSetConcurrency one of the following ResultSet
* constants:
* ResultSet.CONCUR_READ_ONLY or
* ResultSet.CONCUR_UPDATABLE
* @param resultSetHoldability one of the following ResultSet
* constants:
* ResultSet.HOLD_CURSORS_OVER_COMMIT or
* ResultSet.CLOSE_CURSORS_AT_COMMIT
* @return a new PreparedStatement object, containing the
* pre-compiled SQL statement, that will generate
* ResultSet objects with the given type,
* concurrency, and holdability
* @exception SQLException if a database access error occurs
* or the given parameters are not ResultSet
* constants indicating type, concurrency, and holdability
* @see ResultSet
* @since 1.4
*/
PreparedStatement prepareStatement(String sql, int resultSetType,
int resultSetConcurrency, int resultSetHoldability)
throws SQLException;
/**
* Creates a CallableStatement object that will generate
* ResultSet objects with the given type and concurrency.
* This method is the same as the prepareCall method
* above, but it allows the default result set
* type, result set concurrency type and holdability to be overridden.
*
* @param sql a String object that is the SQL statement to
* be sent to the database; may contain on or more ? parameters
* @param resultSetType one of the following ResultSet
* constants:
* ResultSet.TYPE_FORWARD_ONLY,
* ResultSet.TYPE_SCROLL_INSENSITIVE, or
* ResultSet.TYPE_SCROLL_SENSITIVE
* @param resultSetConcurrency one of the following ResultSet
* constants:
* ResultSet.CONCUR_READ_ONLY or
* ResultSet.CONCUR_UPDATABLE
* @param resultSetHoldability one of the following ResultSet
* constants:
* ResultSet.HOLD_CURSORS_OVER_COMMIT or
* ResultSet.CLOSE_CURSORS_AT_COMMIT
* @return a new CallableStatement object, containing the
* pre-compiled SQL statement, that will generate
* ResultSet objects with the given type,
* concurrency, and holdability
* @exception SQLException if a database access error occurs
* or the given parameters are not ResultSet
* constants indicating type, concurrency, and holdability
* @see ResultSet
* @since 1.4
*/
CallableStatement prepareCall(String sql, int resultSetType,
int resultSetConcurrency,
int resultSetHoldability) throws SQLException;
/**
* Creates a default PreparedStatement object that has
* the capability to retrieve auto-generated keys. The given constant
* tells the driver whether it should make auto-generated keys
* available for retrieval. This parameter is ignored if the SQL
* statement is not an INSERT statement.
* prepareStatement will send
* the statement to the database for precompilation. Some drivers
* may not support precompilation. In this case, the statement may
* not be sent to the database until the PreparedStatement
* object is executed. This has no direct effect on users; however, it does
* affect which methods throw certain SQLExceptions.
* PreparedStatement
* object will by default be type TYPE_FORWARD_ONLY
* and have a concurrency level of CONCUR_READ_ONLY.
*
* @param sql an SQL statement that may contain one or more '?' IN
* parameter placeholders
* @param autoGeneratedKeys a flag indicating whether auto-generated keys
* should be returned; one of
* Statement.RETURN_GENERATED_KEYS or
* Statement.NO_GENERATED_KEYS
* @return a new PreparedStatement object, containing the
* pre-compiled SQL statement, that will have the capability of
* returning auto-generated keys
* @exception SQLException if a database access error occurs
* or the given parameter is not a Statement
* constant indicating whether auto-generated keys should be
* returned
* @since 1.4
*/
PreparedStatement prepareStatement(String sql, int autoGeneratedKeys)
throws SQLException;
/**
* Creates a default PreparedStatement object capable
* of returning the auto-generated keys designated by the given array.
* This array contains the indexes of the columns in the target
* table that contain the auto-generated keys that should be made
* available. This array is ignored if the SQL
* statement is not an INSERT statement.
* PreparedStatement object. This
* object can then be used to efficiently execute this statement
* multiple times.
* prepareStatement will send
* the statement to the database for precompilation. Some drivers
* may not support precompilation. In this case, the statement may
* not be sent to the database until the PreparedStatement
* object is executed. This has no direct effect on users; however, it does
* affect which methods throw certain SQLExceptions.
* PreparedStatement
* object will by default be type TYPE_FORWARD_ONLY
* and have a concurrency level of CONCUR_READ_ONLY.
*
* @param sql an SQL statement that may contain one or more '?' IN
* parameter placeholders
* @param columnIndexes an array of column indexes indicating the columns
* that should be returned from the inserted row or rows
* @return a new PreparedStatement object, containing the
* pre-compiled statement, that is capable of returning the
* auto-generated keys designated by the given array of column
* indexes
* @exception SQLException if a database access error occurs
*
* @since 1.4
*/
PreparedStatement prepareStatement(String sql, int columnIndexes[])
throws SQLException;
/**
* Creates a default PreparedStatement object capable
* of returning the auto-generated keys designated by the given array.
* This array contains the names of the columns in the target
* table that contain the auto-generated keys that should be returned.
* This array is ignored if the SQL
* statement is not an INSERT statement.
* PreparedStatement object. This
* object can then be used to efficiently execute this statement
* multiple times.
* prepareStatement will send
* the statement to the database for precompilation. Some drivers
* may not support precompilation. In this case, the statement may
* not be sent to the database until the PreparedStatement
* object is executed. This has no direct effect on users; however, it does
* affect which methods throw certain SQLExceptions.
* PreparedStatement
* object will by default be type TYPE_FORWARD_ONLY
* and have a concurrency level of CONCUR_READ_ONLY.
*
* @param sql an SQL statement that may contain one or more '?' IN
* parameter placeholders
* @param columnNames an array of column names indicating the columns
* that should be returned from the inserted row or rows
* @return a new PreparedStatement object, containing the
* pre-compiled statement, that is capable of returning the
* auto-generated keys designated by the given array of column
* names
* @exception SQLException if a database access error occurs
*
* @since 1.4
*/
PreparedStatement prepareStatement(String sql, String columnNames[])
throws SQLException;
}