What is the equivalent to the following SQL Server statements in DB2?
If you use an IDE like Intellij Idea (or others) then you don't have the possibility to start explicitely a transaction. In others words you cannot type 'begin transaction' in the console of your IDE.
But you can disable 'Auto-commit' (and reenable it later) and then type 'commit' or "rollback' into the console.
In IDEA there is also a button to 'commit' and a button to 'rollback'.
Have a look to the screen dump attached.