The following is the ORA-22906 error message, you can learn the cause and solution of the Oracle database error.
ORA-22906 cannot perform DML on expression or on nested table view column
Cause: An attempt was made to perform a DML on an expression or on a nested table view column where a nested table column of a base table is expected.
Solution: Only nested table column of a base table is allowed in the DML.
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