Cpf4759 attempt to write a duplicate record to file

An OPEN statement with the INPUT, I-O, or EXTEND phrase was attempted on a non-optional file that was not present. CPF4101, CPF4102, CPF4103, CPF4207, CPF9812. An OPEN statement was attempted on a file that would not support the open mode specified in the OPEN statement.

CPF4759, CPF5008, CPF5026, CPF5034, CPF5084, CPF5085. An attempt was made to randomly access a record that does not exist in the file. CPF5001, CPF5006, CPF5013, CPF5020, CPF5025. An attempt was made to write beyond the externally defined boundaries of a relative or indexed file.

The READ statement was successfully executed, but a duplicate key was detected. That is, the key value for the current key of reference was equal to the value of the key in the next record. For information about enabling file status 02 see the accompanying notes under the READ statement.

CPF5037 End of IBM Extension A sequential READ statement was attempted for a relative file and the number of significant digits in the relative record number was larger than the size of the relative key data item described for the file. A sequence error exists for a sequentially accessed indexed file.