Java Crosstab - preparedstatement query

Question

I have a typical crosstab query with static parameters. It works fine with createStatement. I want to use preparestatement to query instead.

         String          


        

Answer 1

Please try:

String query = "...";
PreparedStatement stat = conn.prepareStatement(query);
ResultSet rs = stat.executeQuery();
while (rs.next()) {
  // TODO
}

Answer 2

You have fallen for the confusing type hierarchy of PreparedStatement extends Statement:

PreparedStatement has the same execute*(String) methods like Statement, but they're not supposed to be used, just use the parameterless execute*() methods of PreparedStatement --- you already have given the actual query string to execute using conn.prepareStatement().