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what is a rollback script

Posted on 2014-04-01
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Last Modified: 2014-04-06
what is a rollback script..
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Question by:tonydba
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by:slightwv (䄆 Netminder)
ID: 39970316
Could be anything from a script that creates them to a script to report on them.

Can you provide some additional information?
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by:Wasim Akram Shaik
ID: 39970348
Rollback Script in other terms would mean rollback steps, for suppose you are deploying/delivering a project on production environment

Incase the deliverable or deployment is a failure in such a case, there will be some plan to roll back such changes, in such event we will prepare rollback scripts..!!
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by:David
ID: 39970416
AKA a "backout script".  Assuming that the install/upgrade steps are likewise documented, the backout dictates how to restore the environment to its pre-change image.  If a column datatype is modified, there must be a corresponding step to change it back.

It's never enough to just rely upon a "backup restore".  The installation, and the backout scripts, should be so specific that they could be followed by someone else in the author's absence.
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Devinder Singh Virdi earned 500 total points
ID: 39970853
Rollback term for DBAs generally goes to recovering data back to original.
Since you are asking rollback script, so I can assume:
1. You need to find if any session is doing rollback. Use V$transaction view to see which transaction will do rollback if get terminated or rollback signal.
2. You have DML script and need a backup plan if this script didn't provide desired results and need to revert data to original.
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Author Closing Comment

by:tonydba
ID: 39981691
Yes fine..
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