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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Wow, Man, Flashbacks!
Others have mentioned it, but I just wanted to chime in to warn you to warn
your developers, that they will only have five days to use their frozen
moment in time. This is the limitation imposed by the scn table mentioned
in Dan's post. The reason I decided to chime in is that AFAIK, no official
Oracle documentation refers to this limitation. This is just one of those
odd things I wouldn't know, if it weren't for my association to this list.
-----Original Message-----
Bellow, Bambi
Sent: Friday, November 07, 2003 8:19 AM
To: Multiple recipients of list ORACLE-L
Melanie --
What's happening is that, in a write-intensive environment, the developers want to "freeze a moment in time" which can be used across developers and applications for testing to ensure consistent results. The functionality may be expanded, in time, depending on how it works. But from what I'm seeing, this seems to be the right tool for the job.
Thanks, everyone, for your feedback. In my book, this goes down as Oracle's coolest feature since DECODE.
Bambi.
-----Original Message-----
Sent: Thursday, November 06, 2003 11:45 AM
To: Multiple recipients of list ORACLE-L
Hi Bambi,
I hate to sound repetitive, but, it depends. :-)
It depends on how far you want to flash back to.
One of my clients was being audited last year by their parent company.
I put in a retention period of about a week at a time.
Without divulging much from my confidentiality agreement with them, we were really trying to figure out what certain users were doing within the company, and we provided proof of such. Using the flashback query feature made this incredibly easy to do!
Of course, you have to be careful with your UNDO segments, as you know.
I didn't try going backwards for more than a week. That was all we needed at the time.
I also turned this feature off once we were done.
Other than UNDO segment growth, which I planned for in advance, I didn't have any problems with it. And it made the task at hand incredibly easy.
But, I wouldn't recommend putting it in place unless you really need it.
My $0.02,
Melanie
-- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Melanie Caffrey INET: melanie_caffrey_at_yahoo.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Bellow, Bambi INET: bbellow_at_chi.navtech.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). -- Please see the official ORACLE-L FAQ: http://www.orafaq.net -- Author: Steve McClure INET: smcclure_at_usscript.com Fat City Network Services -- 858-538-5051 http://www.fatcity.com San Diego, California -- Mailing list and web hosting services --------------------------------------------------------------------- To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing).Received on Fri Nov 07 2003 - 14:04:38 CST
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