Hi Ronald,
Why do I need to use "SET AUTOCOMMIT=0" if "BEGIN" can do it default. I wrote 2 pages where transactions work on one page without "SET AUTOCOMMIT=0" and on another page I need to use "SET AUTOCOMMIT=0".

Do you have any idea, why this is happening?

Actually issue is for rollback. Rollback not removing entries after begin statement from table.