On Thu, 2004-04-08 at 11:15, Saqib Qureshi wrote:
> but actually i want to fatch each year record in a separate variable and in
> a single query how it is possible.
Hi,
try this :
select a2.zon, b2.astyer, count(a2.ntn),
b3.astyer, count(a3.ntn)
from ztrmtrext a2, rtnmtr b2,
ztrmtrext a3, rtnmtr b3
where a2.ntn = b2.ntn and b2.astdat is null and b2.astyer='2002'
and a3.ntn = b3.ntn and b3.astdat is null and b3.astyer='2003'
and a2.zon = a3.zon
group by a2.zon,
b2.astyer,
b3.astyer
;
Please note, that you will only get lines listet that have the
"zon"-Values in any year asked for. You will have to use "outer joins"
if not all "zon"-Values are in any year. For details on what an "outer
join" is, you can look at http://www.1keydata.com/sql/sqlouterjoin.html
or http://www.adp-gmbh.ch/ora/sql/outer_join.html .
Wilfried Essig
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