Thread: Ora-22924 Snapshot too old
06-19-09, 14:27 #1Registered User
- Join Date
- Jun 2009
Unanswered: Ora-22924 Snapshot too old
I am using Oracle 11g.
I have one LOB data table with size 11 GB.
When i use dbverify to check corresponding data file, it returns some corrupted blocks. but table is working fine.
While i am trying to export this table/schema, working fine until it reaced 10.5 GB, after that i am getting following error
ORA-01555: snapshot too old: rollback segment number with name "" too
ORA-22924: snapshot too old
i have increased undo TS, increased retention time, but getting same error.
next increased PCTVERSION of LOB column value to 40. still no change.
any help regd this??
06-19-09, 15:19 #2Registered User
Provided Answers: 1
- Join Date
- Aug 2003
- Where the Surf Meets the Turf @Del Mar, CA
Somebody is doing DML & COMMIT against this table while export is underway.
22924, 00000, "snapshot too old" // *Cause: The version of the LOB value needed for the consistent read was // already overwritten by another writer. // *Action: Use a larger version pool.
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