Re: rollback schema changes
Date: Sat, 26 Mar 2011 14:46:53 -0700 (PDT)
On Saturday, March 26, 2011 10:20:04 PM UTC+1, Mladen Gogala wrote:
> On Sat, 26 Mar 2011 12:25:44 -0700, prunoki wrote:
> > The goal would be to undo the effects of a faulty script which generates
> > an error midway, but has made several alter tables and such. If I want
> > to run the full, corrected script again, it would be nice not to spend a
> > day performing a restore.
> > Regards,
> That's what an export is for. Before changes on a schema, always export
> the schema. The people turned into enemies by the "web 2.0" would know
> that. The dreaded "DBA" was expected to know how to manage software
> installation, but the "DBA 2.0" is expected only to know which button on
> the OEM to click. You, apparently, have the DBA 2.0 who didn't read the
> installation plan and screamed when seeing that the plan doesn't include
> the prior export.
> Alternative is the "flashback database" command, which might work if your
> undo tablespace is large enough. That, however, will not roll back only
> one schema. If there is a physical standby, you can try it there, too.
Thanks a lot, going to check out flashback database.
K Received on Sat Mar 26 2011 - 16:46:53 CDT