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Understanding Why ORA-2429 Cannot Drop Index Error is Logged (Doc ID 149091.1)

Last updated on JANUARY 08, 2024

Applies to:

Oracle Database - Enterprise Edition - Version to [Release 8.0.3 to 11.2]
Information in this document applies to any platform.


This bulletin documents cases where why an ORA-02429 error is received is
difficult to understand.



DBAs can use the following examples to understand the restrictions
encountered with the ORA-02429 error.

ORA-02429: cannot drop index used for enforcement of unique/primary key
Cause: An attempt was made to drop an index that is being used as the
enforcement mechanism for a unique or primary key.
Action: Drop the integrity constraint instead of dropping the index.


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