Message Oracle ORA-34145 - (MXCGPUT03) You cannot use the APPEND keyword with SURROGATE workspace object.

ERROR(MXCGPUT03) You cannot use the APPEND keyword with SURROGATE workspace object.
CAUSEUser used the APPEND keyword on a SURROGATE target in a FILEREAD, SQL FETCH or SQL SELECT command.
ACTIONTo assign a value to a SURROGATE in a FILEREAD, SQL FETCH or SQL SELECT command, use the ASSIGN keyword.