rs.last() gives Invalid operation for forward only resultset : last

Question

I am trying to get the row count of a result set by:

rs.last();
int row_count = rs.getRow();

but im getting an Invalid operation for

Answer 1

PreparedStatement ps = conn.prepareStatement ("SELECT * FROM
         EMPLOYEE_TABLE WHERE LASTNAME = ?" ,
         ResultSet.TYPE_SCROLL_INSENSITIVE , 
         ResultSet.CONCUR_UPDATABLE ,
         ResultSet.HOLD_CURSOR_OVER_COMMIT) ;

For prepared statements, you must specify, at a minimum, both the type and the concurrency mode for last() and isLast() to work.