Appends a sequence of bytes to a large object that is contained in a UDT or defined to be the result of a UDF, UDM, or external stored procedure, or defined to be the column of a table operator output stream.
|IF the …||THEN FNC_LobAppend returns …|
|operation is successful||0
The actual_length argument is set to the value of data_length.
The actual_length argument is set to the number of bytes actually appended.