Reverting back the data after processing

Hi,

I have several tables in a DB with numerous rows of data. I run a process, which modifies some of the rows in some tables and commits the transaction. Now I want to revert the tables back to the original state as they were before running the process.

Is it possible without backing up the tables before running the process, because it will occupy a lot of tablespace.

Regards,

Luke.

--
Known is a drop; Unknown is an ocean.


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