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DDL With the WAIT Option (DDL_LOCK_TIMEOUT) - Avoid unnecessary ORA-00054: resource busy errors in 11g.



Raja said...

I have tried out the same in 11.1.0.6. But the ALTER TABLE does not wait for the mentioned seconds but throws error immediately. However, when I try with DROP TABLE, it works. Can you pls. clarify why is it so ?

Alex Bloom said...

WARNING: it doesn't work in 11g (11.2.0.3) if compatibility parameter is set to 11.2.0.0.
DDL statement doesn't even error out with ORA-00054, but instead it just hangs indefinitely waiting for DML to complete. DDL_LOCK_TIMEOUT parameter is completely ignored.

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