Oracle Error Message
ORA-26679: operation not allowed on LOB or LONG columns in LCR
Reason for the Error
Certain operations on LOB/LONG columns of the LCR through rule-based transformations, DML handlers, or error handlers were not allowed.
Solution
Do not perform restricted operations on LOB or LONG columns in LCRs. See the documentation for operations that are restricted on LOB/LONG columns in LCRs.