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ORA-4091 Mutating Table Explanation and Workarounds (Doc ID 74859.1)

Last updated on NOVEMBER 12, 2019

Applies to:

PL/SQL - Version 9.2.0.8 to 10.2.0.5 [Release 9.2 to 10.2]
Information in this document applies to any platform.
***Checked for relevance on 30-Jun-2019***


Purpose

The following bulletin discusses concepts of cascade update, delete, and insert and how to avoid the mutating table error.

Note that in 11g, you can work around this using compound triggers

- see Using Compound Triggers to Avoid Mutating-Table Error

In Oracle� Database PL/SQL Language Reference, Chapter 9 Using Triggers

Scope

For users requiring the ability to cascade update, delete or insert whilst being able to maintain referential integrity between objects.

Details

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