How to fix the Oracle error ORA-14551: cannot perform a DML operation inside a query?

In this post, you’ll learn more about the Oracle ErrorORA-14551: cannot perform a DML operation inside a query with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

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

Reason for the Error ORA-14551: cannot perform a DML operation inside a query

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

How to fix the Error ORA-14551: cannot perform a DML operation inside a query ?

You can fix this error in Oracle by following the below steps

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.