ORA-26679: operation not allowed on LOB or

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ORA-26679: operation not allowed on LOB or LONG columns in LCR
Cause: Certain operations onLOB/LONG columns of the LCR through
rule-based transformations, DML handlers, or error handlers were not allowed.
Action: Do not performrestricted operations on LOB or LONG columns in LCRs.
See the documentation for operations that are restricted on LOB/LONG columns
in LCRs.