Oracle-L: RE: Wow, Man, Flashbacks!

From: Bellow, Bambi <bbellow_at_chi.navtech.com>
Date: Fri, 07 Nov 2003 08:19:25 -0800
Message-ID: <F001.005D5FA8.20031107081925@fatcity.com>

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

"Bellow, Bambi" <bbellow_at_chi.navtech.com> wrote:
> Hi Folks!
>
> I got waylaid(?) when I got in this morning and
> these user dudes were
> talking about using flashbacks, and I was like
> "Woah! Dudes! Let's just
> chill on this for a couple of minutes". So, I went
> back to my desk and
> checked out a cool article on it...
>
>
http://www.oracle-base.com/Articles/9i/FlashbackQuery.asp
>
> And it looks like it's like, killer, yknow? So, I
> was thinking "well, we've
> got sufficiently large undo segments for this, I
> don't see a problem with
> it" but that didn't sound terribly cool, and anyway,
> before I go willy-nilly
> saying this is the niftiest thing Oracle's done in
> years, I thought I would
> run it by you guys and see if anybody out there is
> running with flashbacks
> and whether there have been any problems with it.
>
> Yer far-out pal,
> Bambi.
>
>
> --
> 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).

Do you Yahoo!?
Protect your identity with Yahoo! Mail AddressGuard http://antispam.yahoo.com/whatsnewfree

-- 
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).

Received on Fri Nov 07 2003 - 10:19:25 CST