Re: sy-index sy-tabix

pls execute following code and let me know if u have any doubt on sy-tabix and sy-index.....

REPORT  ztabix_index_dbcnt.

DATA: it_vbak TYPE TABLE OF vbak,
       wa_vbak TYPE          vbak.

SELECT * FROM vbak INTO TABLE it_vbak UP TO 10 ROWS.


WRITE:/'system varriables at initial'.
WRITE: /'sy-tabix',sy-tabix, 'sy-index',sy-index,'sy-dbcnt', sy-dbcnt.


WRITE:/'IN th loop without read statement' COLOR 1.
LOOP AT it_vbak INTO wa_vbak.
   WRITE: /'sy-tabix',sy-tabix, 'sy-index',sy-index,'sy-dbcnt', sy-dbcnt.
ENDLOOP.



WRITE:/'IN th loop  read statement' COLOR 2.
LOOP AT it_vbak INTO wa_vbak.
   READ TABLE it_vbak INTO wa_vbak INDEX 5.
   IF sy-subrc EQ 0.
     WRITE: /'sy-tabix',sy-tabix, 'sy-index',sy-index,'sy-dbcnt', sy-dbcnt.
   ENDIF.
ENDLOOP.



WRITE:/'Do statement' COLOR 3.
DO 10 TIMES.
   READ TABLE it_vbak INTO wa_vbak INDEX 5. "WITH KEY vbeln = wa_vbak-vbeln.
   WRITE: /'sy-tabix',sy-tabix, 'sy-index',sy-index,'sy-dbcnt', sy-dbcnt.
ENDDO.