Actually, flashback is available regardless of the undo management configuration. Flashback requires use of the smon_scn_time table, which is populated with an scn -> time relationship every five minutes the instance is up. The table is restricted to a certain size (14400 entries IIRC) by the update logic, so the 5 days of flashback time is a result of the old records being 'aged' off the table.
Using AUM increases the likelihood that a flashback query will succeed, but it is not a guarantee. The logic of block reuse in AUM should increase the retention of undo. Daniel Fink Melanie Caffrey wrote: > Yes, this is correct. > > Rollback segments cannot be used. > > --- Stephen Andert <[EMAIL PROTECTED]> > wrote: > > Bambi, > > > > Are you using automatic undo management or manual? > > I think that > > flashback can only be used with auto. > > > > Stephen > > > > >>> [EMAIL PROTECTED] 11/06/03 10:04AM >>> > > 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: [EMAIL PROTECTED] > > > > 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: [EMAIL PROTECTED] (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: Stephen Andert > > INET: [EMAIL PROTECTED] > > > > 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: [EMAIL PROTECTED] (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: [EMAIL PROTECTED] > > 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: [EMAIL PROTECTED] (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: Daniel W. Fink INET: [EMAIL PROTECTED] 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: [EMAIL PROTECTED] (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).
