When I call PreparedStatement.cancel() in a JDBC application, does it actually kill it in an Oracle database?

Question

I have Java JDBC application running against an Oracle 10g Database. I set up a PreparedStatement to execute a query, and then call ps.executeQuery() to run it. Occasional

Answer 1

The answer is that it's a quality-of-implementation issue. If you look at the javadoc for Statement.cancel(), it says it'll happen "if both the DBMS and driver support aborting an SQL statement".

In my experience with various versions of Oracle JDBC drivers, Statement.cancel() seems to do what you'd want. The query seems to stop executing promptly when cancelled.