How to fix the Oracle error ORA-24797: cannot promote the current transaction to a distributed transaction?

In this post, you’ll learn more about the Oracle ErrorORA-24797: cannot promote the current transaction to a distributed transaction with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-24797: cannot promote the current transaction to a distributed transaction

Reason for the Error ORA-24797: cannot promote the current transaction to a distributed transaction

An illegal attempt was made to promote the current transaction.

How to fix the Error ORA-24797: cannot promote the current transaction to a distributed transaction ?

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

Verify that OCI_ATTR_XID, OCI_ATTR_INTERNAL_NAME, and OCI_ATTR_EXTERNAL_NAME attributes have been set properly, and verify that the current transaction has neither performed IDL or PDML operations, nor already been a distributed transaction. Also, verify that the local transaction is in the same isolation level if the isolation flag value is set.