help on System fields.

[Former Member]

Hi all,

I have always confusion when to use which system fields(tabix, index, tfill).

í created one program first i used sy-tabix instead of sy-index.Then it doesnt work.

Please clarify me with examples.

that code is.

FORM delimiting.

  DO.
* assigns the next field in the current header to <f>.
    ASSIGN COMPONENT sy-index OF STRUCTURE i_itab TO <f>.
    IF sy-subrc <> 0.
      EXIT.
    ENDIF.

    IF sy-index = 1.
      excel_string = <f>.
    ELSE.
      CONCATENATE excel_string <delim> <f> INTO excel_string.
    ENDIF.
  ENDDO.

ENDFORM.                    " delimiting

Thanks and regards

Chandu.

[Former Member]

hi,

sy-tabix is used in loop and endloop for internal tables.

sy-index is used for do and enddo and other loops like while

[Former Member]

in case of Do loops we usually go for sy-index,

in loop and endloops or read statements we use sy-tabix..

regards

vijay

[RichHeilman]

Use SY-index when working with DO loops. Use SY-TABIX when working with LOOP or READ statements. Just remember that sy-<b>TAB</b>ix is used for internal tables tables.

Regards,

Rich Heilman

[Former Member]

where tfill gives current number of entries in internal table

[Former Member]

Hi,

Sy-index specifies about the current loop pass which is same as ur example.

Sy-tabix stores the current line index of the table.

loop at it_mara.

< ur logic >

modify table it_mara index sy_tabix.

endloop.

Sy-tfill tells abt the current number of lines in the internal table.

describe table it_mara lines sy-tfill.

if sy-tfill = 0.

<ur code if table is initial>

endif.

Regards,

Neelima.