ORA-00054 Error Message
Learn the cause and how to resolve the ORA-00054 error message in Oracle.
Description
When you encounter an ORA-00054 error, the following error message will appear:
- ORA-00054: resource busy and acquire with NOWAIT specified
Cause
You tried to execute a LOCK TABLE or SELECT FOR UPDATE command with the NOWAIT keyword but the resource was unavailable.
Or you tried to DROP a COLUMN using the ALTER TABLE command and received the error.
Resolution
The option(s) to resolve this Oracle error are:
Option #1
Wait and try the command again after a few minutes.
Option #2
Execute the command without the NOWAIT keyword.
Option #3
If the error occurred while trying to DROP a COLUMN, be sure to backup the data. Then TRUNCATE the table and execute the DROP COLUMN command again.
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