ABAPASSIGN_MAIN_TABLE_FIELD - ASSIGN MAIN TABLE FIELD

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ASSIGN LOCAL COPY OF MAIN TABLE FIELD

Variant 4c

ASSIGN LOCAL COPY OF MAIN TABLE FIELD (f) TO <f>.

This statement is for internal use only.
It must not be used in application programs.

Siehe No Local Copies Allowed With ASSIGN.

Effect

As with ASSIGNTABLE FIELD, this statement assigns a field to the field symbol <fs>. However, the system only looks for the field in the global data of themain programgroup declared using TABLES. The field symbol does not point directly to the field, but instead to a copy of this field on the value stack.
This variant ensures that you can read ABAP Dictionary fields of a different program group, but not change them.

Example

PROGRAM P1MAIN.
  TABLES TRDIR.
  MOVE 'XYZ_PROG' TO TRDIR-NAME.
  CALL FUNCTION 'EXAMPLE'.

FUNCTION-POOL FUN1.
  FUNCTION EXAMPLE.
    DATA NAME(30) VALUE 'TRDIR-NAME'.
    FIELD-SYMBOLS <FS> TYPE ANY.
    ASSIGN LOCAL COPY OF MAIN
      TABLE FIELD (NAME) TO <FS>.
    IF SY-SUBRC = 0.
      WRITE <FS>.
    ELSE.
      WRITE / 'Cannot find TRDIR-NAME'.
    ENDIF.
  ENDFUNCTION.

Output: XYZ_PROG

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