912294 wrote:the session that reports ORA-01555 is the victim; not the culprit.
I don't get it, how come I get ORA-01555 even though my undo tablespaces are (it's a RAC system) both autoextend ON
912294 wrote:Read MOS notes about this error it could be generated for more than one reasons
my undo_retention is set to 86400 (24 hours) and it happened today to a query that started today.
and why would I change undoautotune to false?
912294 wrote:If you did not understand what is written on asktom & Metalink,
Thanks all, but I still didn't get an explaination on 1555 with autoextend ON
I thought it shouldn't happen anymore when I turn autoextend to ON