How can I abort a running JDBC transaction?

Question

Is there a way to prematurely abort a transaction? Say, I have sent a command to the database which runs five minutes and after four, I want to abort it.

Does JDBC d

Answer 1

As mentioned by james, Statement.cancel() will cancel the execution of a running Statement (select, update, etc). The JDBC docs specifically say that Statement.cancel() is safe to run from another thread and even suggests the usage of calling it in a timeout thread.

After canceling the statement, you're still stuck with the job of rolling back the transaction. That is not documented as being safe to run from another thread. The Connection.rollback() should happen in the main thread doing all the other JDBC calls. You can handle that after the canceled Statement.execute...() call completes with a JDBCException (due to the cancel).