question: public void execute ( String sql ) throws DatabaseException { Statement stmt = null ; try { stmt = connection . createStatement ( ) ; stmt . execute ( sql ) ; } catch ( SQLException e ) { throw ( new DatabaseException ( e ) ) ; } finally { if ( stmt != null ) { try { stmt . close ( ) ; } catch ( SQLException e ) { } } } }
target:  Execute a INSERT, DELETE, UPDATE, or other statement that does not return a ResultSet.