Sorry if I did not phrase my question correctly. I do know that for a
database with block size 2K, the number of max transaction slots is 21.
When I was running my tests, I was expecting to see an "Out of transaction
slots" on the 22nd session. Instead Oracle tried to use the system rollback
segment, and gave me an "Unable to use system rollback segment for a non
system .... " error.

My question is I want to simulate the "Out of transaction slot" error? What
should I do to have Oracle report this message back to me?

Thanks
Raj




                                                                                       
                             
                    Jared.Still@r                                                      
                             
                    adisys.com           To:     [EMAIL PROTECTED]                  
                             
                                         cc:     Rajesh Rao/CHASE@CHASE                
                             
                    October 08,          Subject:     Re: ORA-1554: Out of transaction 
slots                        
                    2002 02:44 PM                                                      
                             
                                                                                       
                             
                                                                                       
                             




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






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Sent by: [EMAIL PROTECTED]
 10/08/2002 11:34 AM
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        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


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