Question

I’m wondering if something is possible in Java

String A = "UPDATE blah set x=? y=? z=?"
String B = "UPDATE blah set a=? b=? c=? d=?"

I’d like to have a prepared statement primarily for the speed, secondarily for the security. I want to be able to fill out the bind variables for A, execute A, bind variables for B, and execute B, then commit the entire transaction. Is there a better way to accomplish this?

Answer 1

You can utilize multiple PreparedStatements for the desired result:

// Prepare code for PreparedStatement #1
String varOne = "A";
String varTwo = "B";
String varThree = "C";

String queryOne = "UPDATE blah set x=? y=? z=?"
PreparedStatement firstStmt = conn.prepareStatement(queryOne);

firstStmt.setString(1, varOne);
firstStmt.setString(2, varTwo);
firstStmt.setString(3, varThree);

firstStmt.executeUpdate();
conn.commit();

// Prepare code for PreparedStatement #2
String varOneB = "X";
String varTwoB = "Y";
String varThreeB = "Z";
String varFourB = "A";

String queryOne = "UPDATE blah set a=? b=? c=? d=?"
PreparedStatement secondStmt = conn.prepareStatement(queryTwo);

secondStmt.setString(1, varOneB);
secondStmt.setString(2, varTwoB);
secondStmt.setString(3, varThreeB);

secondStmt.executeUpdate();
conn.commit();