Executes the given SQL statement, which may return multiple results. 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).

Note:This method cannot be called on a PreparedStatement or CallableStatement.

Parameters:

sql

any SQL statement

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

Exceptions:

SQLException		if a database access error occurs, this method is called on a closed Statement, the method is called on a PreparedStatement or CallableStatement
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:
getResultSet, getUpdateCount, getMoreResults