Oracle Error ORA-14551: cannot perform a DML operation inside a query

Oracle Error Message

ORA-14551: cannot perform a DML operation inside a query

Reason for the Error

DML operation like insert, update, delete or select-for-update cannot be performed inside a query or under a PDML slave.

Solution

Ensure that the offending DML operation is not performed or use an autonomous transaction to perform the DML operation within the query or PDML slave.