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Question

SAP Query Difficulties
Please see the above link for my requirements. I am carrying this report out in SQ01.
All the joins have been achieved with the standard infoset  functionality.
Within a custom field 'SHORTS' I have the following code (I know it's not right but can't figure out how to write the correct code in to achieve desired results):
DATA:
begin of WA_FINAL,
VBELV like VBFA-VBELV,
POSNV like VBFA-POSNV,
VBELN like VBFA-VBELN,
POSNN like VBFA-POSNN,
KWMENG like VBAP-KWMENG,
LFIMG like LIPS-LFIMG,
end of WA_FINAL,
I_FINAL like standard table of WA_FINAL with header line,
l_sum  like LIPS-LFIMG,
wa_del_sent like LIPS-LFIMG.
SELECT
VBELV POSNV VBELV POSNV
INTO
I_FINAL
FROM
VBFA.
ENDSELECT.
SELECT SINGLE
KWMENG
FROM
VBAP
INTO
I_FINAL
WHERE
VBELN = I_FINAL-VBELV AND POSNR = I_FINAL-POSNV.
  SELECT SINGLE
  LFIMG
  FROM
  LIPS
  INTO
  I_FINAL
  WHERE
  VBELN = I_FINAL-VBELN AND POSNR = I_FINAL-POSNN.
  loop at I_FINAL into WA_FINAL.
    if sy-tabix = 1.
l_sum  =  WA_FINAL-LFIMG.
     WA_FINAL-LFIMG  =  WA_FINAL-LFIMG.
     SHORTS = WA_FINAL-KWMENG - WA_FINAL-LFIMG.
     wa_del_sent  =  WA_FINAL-LFIMG.
    else .
      l_sum  =  wa_del_sent  +  l_sum.
      SHORTS =  WA_FINAL-KWMENG  -  l_sum.
    endif.
  endloop.

Answer 1

How would I go about coding inner join on my internal table in this instance?
Sorry I am researching suggestions and trying to debug the code myself too but the collective expertise on this site may push me in the right direction with the right methodology.