Oracle Error ORA-26786: A row with key string exists but has conflicting column(s) string in table string

Oracle Error Message

ORA-26786: A row with key string exists but has conflicting column(s) string in table string

Reason for the Error

The row to update or delete exists in the table but had conflicting value for some columns.

Solution

For Streams, please define a conflict resolution, or resolve the conflict and execute the error transaction using DBMS_APPLY_ADM.EXECUTE_ERROR. For logical standby, please verify the status of the database guard to ensure local modifications are not allowed, then re-instantiate the table and contact support if the problem persists.

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