I know, its stupid..

MYSQL on CENTOS 5 using WHM

Imported a lot of users/posts from old forum to new forum, but my backup was lost.

Can I somehow simply remove all mysql table changes for the last 3 hours, returning to pre-import status.

---------- Post updated at 03:44 AM ---------- Previous update was at 03:18 AM ----------

this is fixed, will request admin to close!

Would you mind to share the solution?

lol, I found a off-site backup!

Just as a follow-up, mysql does have the ability to reverse a transaction through the ROLLBACK command after a commit. However, you need to make sure you're using InnoDB and you need to use this statement:

SET autocommit=0;

I suppose you mean before (not after) a commit ...

Whoops, my bad. Yes, before you run a commit.

You may want to run a delayed slave for such eventualities in future. Check out pt-slave-delay — Percona Toolkit Documentation

You can choose whatever interval suits you