'enq: TX - contention' Contention Seen When Trying to Execute "ALTER TABLE <table_name> ENABLE TABLE LOCK;"
Last updated on MAY 22, 2017
Applies to:Oracle Database - Enterprise Edition - Version 10.2.0.4 and later
Information in this document applies to any platform.
- ALTER TABLE <table_name> ENABLE TABLE LOCK; appears to hang indefinately taking a significant amount of time if it ever completes
- ALTER TABLE <table_name> DISABLE TABLE LOCK;works fine
- While waiting for the "ENABLE" to complete, considerable waits for 'enq: TX - contention' is noticed.
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