Loop within a loop

Question

is there anything wrong with this code
clear wa_bseg.
loop at t_final into wa_final.
  loop at t_bseg1 into wa_bseg where belnr = wa_final-belnr
                               and   gjahr = wa_final-gjahr.
*and   zfbdt  = wa_final-zfbdt.
if sy-subrc eq 0 .
wa_final1 = wa_final.
append wa_final1 to t_final1.
clear wa_final1.
endif.
clear wa_bseg.
endloop.
*clear wa_final.
endloop.

Answer 1

Hi,
Instead of using loop within loop , use read statement within loop it will improve program performance.
try this below logic..
clear wa_bseg.
loop at t_final into wa_final.
read table t_bseg1 into wa_bseg with key belnr = wa_final-belnr
                                                            gjahr = wa_final-gjahr.
if sy-subrc eq 0 .
   wa_final1 = wa_final.
   append wa_final1 to t_final1.
endif.
clear: wa_bseg, wa_final1,wa_final.
endloop.
Regards,
N M Poojari.
Edited by: Nilambari Poojari on May 27, 2008 9:06 AM