Hi, quite strange... perhaps any dictionary managed tablespace?! Ste On 14 October 2010 17:43, <paul.baumgartel@xxxxxxx> wrote: > A developer came to me with an error message the other day--(Oracle 11gR2 > on Solaris) > > > ORA-01555: snapshot too old: rollback segment number 16 with name > "_SYSSMU16_3927122202$" too small > > The error was recorded in Grid Control, with the ID of the SQL that caused > it. To my surprise it was a query on ALL_IND_PARTITIONS. I would have > expected a query on the data dictionary to look for consistent-read blocks > in the SYSTEM tablespace, as create/drop/alter index DDL would create undo > there. Am I wrong? Has this changed in 11g? > > -- http://www.stefanocislaghi.eu