It's dependant on block size, or at least it was the last time I checked, which was a few years ago.
You can see the number of slots by doing a block dump the rollback segment. Jared [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 10/08/2002 11:34 AM Please respond to ORACLE-L To: Multiple recipients of list ORACLE-L <[EMAIL PROTECTED]> cc: Subject: ORA-1554: Out of transaction slots Hello Folks, I carried out a test, whereby I had just one rollback segment online with a block size of 2K, and then running updates against the database thru different sessions without commiting any of them? As expected, it accepted the first 21 transactions, and on the 22nd transaction, threw an "Unable to use system rollback segment for a non system .... " error. When does Oracle report an "ORA-1554: Out of transaction slots" for a rollback segment? Thanks Raj -- Please see the official ORACLE-L FAQ: http://www.orafaq.com -- Author: 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.com -- Author: 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).