Oracle Error Message
OCI-21571: must provide a LOB WRITE, LOB TRIM or LOB ERASE LCR in string call (input LCR=string)
Reason for the Error
An attempt was made to invoke the specified function without providing a piece-wise LOB LCR (for example, LOB WRITE, LOB TRIM or LOB ERASE LCR).
Solution
Correct the ‘row_lcrp’ argument in the call.