JDBC and Oracle conn.commit and conn.setAutocommit not working properly

Question

I have made a DBManager class as shown below

public class DBManager {


      public static String DRIVER = \"oracle.jdbc.driver.OracleDriver\";
      public         


        

Answer 1

TRUNCATE TABLE basically doesn't allow commit/rollback in the normal way. As per this documentation:

Because a Truncate is DDL it issues a COMMIT before it acts and another COMMIT afterward so no rollback of the transaction is possible.

If you want to do this as part of a transaction, use DML instead - e.g. a normal DELETE FROM ... statement.