Need help with join

Question

Extract each entry from BSEG for BELNRs in BKPF-BELNR,
and KOSTL in ZTABLE-KOSTL.
sum(DMBTR) by KOSTL into
internal tab <ITAB (fields KOSTL, DMBTR)>.
i wrote the code like this:
Select sum( aDMBTR ) aKOSTL into inkostltotal from BSEG as a
inner join BKPF as b on bBELNR = aBELNR
inner join Ztable as c on c~KOSTL = a-KOSTL
group by a~KOSTL.
it was giving error:
You cannot use comparisons with column column references in pool and
cluster tables: "A~BELNR". column references in pool and cluster
tables: "A~BELNR". column references in pool and cluster tables:
"ABELNR". column tables: "ABELNR".
i need to use select, sum, group by to solve this can some one
help me with this.

Answer 1

hi saritha,
               y ur not using for all entries, that will best in this situation.
use for all entries like that
CLEAR : T_EQUZ,T_EQUZ[].
SELECT * FROM EQUZ INTO TABLE T_EQUZ
                   WHERE DATBI = '99991231'.
IF NOT T_EQUZ[] IS INITIAL.
  select J_3GBELNRI equnr J_3GEMPFAE into
       corresponding fields of table
       T_J_3GBELP from J_3GBELP
       FOR ALL ENTRIES IN T_EQUZ
       where j_3guposnr ne '1'
       and J_3GEMPFAE in Reciver
       and equnr = T_EQUZ-EQUNR.
regards
vijay dwivedi
rewards if usefull