WAIT FOR A UNDO RECORD

Cause In fast-start parallel rollback, the background process SMON acts as a coordinator and rolls back a set of transactions in parallel using multiple server processes. Fast start parallel rollback is mainly useful when a system has transactions that run a long time before a commit, especially parallel Inserts, Updates, Deletes operations. When SMON discoversContinue reading “WAIT FOR A UNDO RECORD”

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