[mazzy]

Цитата:

Сообщение от fed

Я бы пошел по такому пути:

кстати, ты просто переформулировал мой второй пример наивной реализации с isnull )))

with trans as (
SELECT
    isnull(accTable.SUMACCOUNT, isnull(accGroup.SumAccount, accAll.SumAccount)) as pSumAccount,
    tr.*
from custtrans as tr
join custtable as tab on (tab.DATAAREAID = tr.DATAAREAID and tab.accountnum = tr.accountnum)
left join CUSTLEDGERACCOUNTS as accTable
    on (accTable.DATAAREAID = tr.DATAAREAID
    and accTable.POSTINGPROFILE = tr.POSTINGPROFILE
    and accTable.AccountCode = 0 and accTable.NUM = tab.ACCOUNTNUM)
left join CUSTLEDGERACCOUNTS as accGroup 
    on (accTable.DATAAREAID = tr.DATAAREAID
    and accGroup.POSTINGPROFILE = tr.POSTINGPROFILE
    and accGroup.AccountCode = 1 and accGroup.NUM = tab.CUSTGROUP)
left join CUSTLEDGERACCOUNTS as accAll
    on (accAll.DATAAREAID = tr.DATAAREAID
    and accAll.POSTINGPROFILE = tr.POSTINGPROFILE
    and accAll.AccountCode = 2)
)
select *
from trans
--where trans.DATAAREAID in ('dmr')