Oracle 11g SUM function on the result of inner Select

Question

The inner Select returns rows with the values. The outer select running on tthe result of inner select SUM the result of the inner select.
Although there are valid rows of the inner select the SUM in the outer SELECT return NVL. As a comment any aggregate function on the outer select returns NVL.
The query is below.
select a.yil,
a.ay,
sum(brut_prim),
sum(kom),
from (SELECT oid_pol_kesilen_acente,
to_char(pp.zeyil_tanzim_tar, 'yyyy') yil,
to_char(pp.zeyil_tanzim_tar, 'mm') ay,
sum(decode(substr(pp.no, 1, 1),
'T',
pp.zeyil_brut_prim_fark / 2,
pp.zeyil_brut_prim_fark)) -
sum(pp.zeyil_gv_fark) brut_prim,
sum(pp.zeyil_acente_kom_fark) kom
from pol_police pp, org_acente oa
WHERE SUBSTR(PP.NO, 1, 1) != 'D')
group by oid_pol_kesilen_acente,
to_char(pp.zeyil_tanzim_tar, 'yyyy'),
to_char(pp.zeyil_tanzim_tar, 'mm')) a
group by a.yil, a.ay, oid_pol_kesilen_acente
Edited by: [email protected] on May 7, 2010 2:09 AM
Edited by: [email protected] on May 7, 2010 2:31 AM

Answer 1

Hi,
please try the below sql:
select a.yil, a.ay, sum(brut_prim), sum(kom),
from (SELECT oid_pol_kesilen_acente,to_char(pp.zeyil_tanzim_tar, 'yyyy') yil, to_char(pp.zeyil_tanzim_tar, 'mm') ay,
sum(decode(substr(pp.no, 1, 1), 'T',nvl(pp.zeyil_brut_prim_fark,0) / 2,nvl(pp.zeyil_brut_prim_fark,0))) - sum(nvl(pp.zeyil_gv_fark,0)) brut_prim,
sum(nvl(pp.zeyil_acente_kom_fark,0)) kom
from pol_police pp, org_acente oa
WHERE SUBSTR(PP.NO, 1, 1) != 'D'
group by oid_pol_kesilen_acente,
to_char(pp.zeyil_tanzim_tar, 'yyyy'),
to_char(pp.zeyil_tanzim_tar, 'mm')
) a
group by a.yil, a.ay, oid_pol_kesilen_acente ;
Thanks,
Siva