Oracle Error ORA-24772: Cannot mix tightly-coupled and loosely-coupled branches

Oracle Error Message

ORA-24772: Cannot mix tightly-coupled and loosely-coupled branches

Reason for the Error

Application attempted to start a transaction with a global transaction identifier and a wrong option.

Solution

Verify that all branches of a global transaction are started with either OCI_TRANS_TIGHT or OCI_TRANS_LOOSE option. If the application is correct and uses distributed updates, contact customer support.