ORA-22281: cannot perform operation with an updated locator

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ORA-22281: cannotperform operation with an updated locator
Cause: The input locator has buffering enabled and was usedto update the LOB
value through the LOB buffering subsystem. The modified buffer has not been
flushed since the write that was performed by the the input locator; thus, theinput
locator is considered an updated locator. Updated locators cannot be the sourceof
a copy operation. Only one locator per LOB may be used to modify the LOB value
through the LOB buffering subsystem.
Action: Dependingon whether the modifications made through the input locator
to the LOB buffering subsystem should be written to the server, either flushthe
buffer to write the modifications, or, disable buffering on the locator todiscard the
modifications. Then, reissue the command.