ORA-22993: specified input amount is greater than actual source amount

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ORA-22993: specified input amount is greater than actual source amount
Cause: (1) For LOB write,the amount of data received is different from the
amount that was indicated would be sent. (2) For LOB copy and loadfromfile, the
end of the source LOB/FILE value was reached before the specified input amount
was copied/loaded.
Action: (1) will happen whenusing OCI's piecewise mechanism with polling or
with a callback function. Modify the code either to send the amount specifiedor to
pass 0 as the input amount so that any amount of data can be sent. (2) willhappen
if the specified input amount is too large for the source LOB/FILE given the
starting source offset. Either decrease the starting source offset, or decreasethe
amount to copy/load