question: private ResultSet executeQuery ( String query ) throws SQLException { if ( m_stmt == null ) m_stmt = m_conn . createStatement ( ) ; long timein = System . currentTimeMillis ( ) ; s_logger . info ( "Issuing query: " + query ) ; ResultSet rset = m_stmt . executeQuery ( query ) ; long time = System . currentTimeMillis ( ) - timein ; s_logger . info ( "External query processing completed: " + ( time / 1000 ) + "." + ( time % 1000 ) + " seconds." ) ; return rset ; }
target:  Execute a query and return the corresponding result set