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ORA-04021 Error While Renaming Table (Doc ID 2378941.1)

Last updated on JANUARY 29, 2020

Applies to:

Oracle Database - Enterprise Edition - Version 11.2.0.4 and later
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Database Cloud Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

Table is getting locked while renaming.

SQL> ALTER TABLE <TABLE_NAME> RENAME TO <NEW_TABLE_NAME>;

ORA-20100: Unexpected exception in procedure
ORA-04021: timeout occurred while waiting to lock object
 


Changes

 None

Cause

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In this Document
Symptoms
Changes
Cause
Solution


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