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    Oracle Error ORA-04091: table string.string is mutating, trigger/function may not see it

    admin November 15, 2022 No Comments

    Oracle Error Message

    ORA-04091: table string.string is mutating, trigger/function may not see it

    Reason for the Error

    A trigger (or a user defined plsql function that is referenced in this statement) attempted to look at (or modify) a table that was in the middle of being modified by the statement which fired it.

    Solution

    Rewrite the trigger (or function) so it does not read that table.

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