Executes the SQL statement in this PreparedStatement object, which may be any kind of SQL statement. Some prepared statements return multiple results; the execute method handles these complex statements as well as the simpler form of statements handled by the methods executeQuery and executeUpdate.

The execute method returns a boolean to indicate the form of the first result. You must call either the method getResultSet or getUpdateCount to retrieve the result; you must call getMoreResults to move to any subsequent result(s).

Returns:  true if the first result is a ResultSet object; false if the first result is an update count or there is no result

Exceptions:

SQLException		if a database access error occurs; this method is called on a closed PreparedStatement or an argument is supplied to this method
SQLTimeoutException		when the driver has determined that the timeout value that was specified by the setQueryTimeout method has been exceeded and has at least attempted to cancel the currently running Statement

See also:
Statement.execute, Statement.getResultSet, Statement.getUpdateCount, Statement.getMoreResults