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ORA-01555 caused by SQL statement below [message #293626]

Mon, 14 January 2008 05:22

LaFilipina
Messages: 51
Registered: May 2007
Location: spain

Member

Hi guys,

The other day, I got tons of errors like this in my alert log:

Thu Jan 10 12:58:46 2008
ORA-01555 caused by SQL statement below (Query Duration=1199987926 sec, SCN: 0x0000.f9b0297c):
Thu Jan 10 12:58:46 2008
table_4_2000_4569_0_452a_0

I couldn't trace what process or query has caused this since I am not given the actual query. I only got a weird name of an object - probably a table name. The table/object name above is basically the same on all 84 ORA-0155 that I can see from the alert log.

Our undo retention is already high and rollback segments are pretty big too. Any idea on what the error above might have caused by?

Thanks.

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Re: ORA-01555 caused by SQL statement below [message #293628 is a reply to message #293626]

Mon, 14 January 2008 05:29

Michel Cadot
Messages: 68718
Registered: March 2007
Location: Saint-Maur, France, https...

Senior Member
Account Moderator

This table name is in fact a LOB, you have to increase the PCTVERSION parameter or use the RETENTION option.

Regards
Michel

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Re: ORA-01555 caused by SQL statement below [message #293700 is a reply to message #293626]

Mon, 14 January 2008 11:00

LaFilipina
Messages: 51
Registered: May 2007
Location: spain

Member

Thanks, Michel.

We'd need to see if this is just an intermittent error out of one run away process. Otherwise, we have your advice on hand.

Thanks again and more power!

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Re: ORA-01555 caused by SQL statement below [message #293702 is a reply to message #293626]

Mon, 14 January 2008 11:27

BlackSwan
Messages: 26766
Registered: January 2009
Location: SoCal

Senior Member

Michel could very well be correct once again.
For more possibilities visit http://asktom.oracle.com & do a keywork search on ORA-01555

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