Select logic

Question

Is there any other way of constructing select other than the one below without using for all entries because it is causing performance issues..
  if not itab1[] is initial.
    select objnr
              kstar
              ebeln
              wtgbtr
              wogbtr
              from covp
              into  table itab2
              for all entries in itab1
              where perio in s_period
              and objnr = itab1-objnr
              and   gjahr = p_fyear .
  endif.

Answer 1

hi,
try this:
  select objnr
              kstar
              ebeln
              wtgbtr
              wogbtr
              from covp
              into  table itab2
              for all entries in itab1
              where perio in s_period
         and objnr = itab1-objnr
              and   gjahr = p_fyear .
create a range for the objnr.
ranges: r_objnr for itab1-objnr.
loop at itab1. 
   r_objnr-sign = 'I'.
  r_objnr-option = 'EQ'.
  r_objnr-low = itab1-objnr.
  append r_objnr.
  clear r_objnr.
endloop.
delete itab2 where  not objnr in r_objnr.
Regards,
Subbu