sql - Use a variable instead of UNION query -


i trying write query variable criteria. there anyway below without using union, instead using list of dates in table?

select '2014-03-03' snapshotdate ,t2.pre_ppi_cycle ,sum(isnull(t2.pre_ppi_balance, 0))as pre_balance ,count(isnull(t2.account_number, 0)) pre_volume ,row_number() on (partition account_number  order account_number, snapshotdate desc) row #table_1 t2 t2.snapshotdate <= '2014-03-03' group t2.snapshotdate, t2.pre_ppi_cycle, account_number union select '2014-03-04' snapshotdate ,t2.pre_ppi_cycle ,sum(isnull(t2.pre_ppi_balance, 0))as pre_balance ,count(isnull(t2.account_number, 0)) pre_volume ,row_number() on (partition account_number  order account_number, snapshotdate desc) row #ppi_3 t2 t2.snapshotdate <= '2014-03-04' group t2.snapshotdate, t2.pre_ppi_cycle, account_number

edit

thanks far - clarify - code have.

select  t2.capture_date ,t1.pre_ppi_cycle ,sum(isnull(t1.pre_ppi_balance, 0))as pre_balance ,count(isnull(t1.account_number, 0)) pre_volume ,row_number() on (partition t1.account_number   order t1.account_number, t1.snapshotdate desc) row  #ppi_3 t1 inner join (select child.capture_date #dates child child.capture_date <= '2014-03-04') t2 on t2.capture_date = t1.snapshotdate group t2.capture_date, t1.snapshotdate, t1.pre_ppi_cycle, t1.account_number

i've mentioned below in comments i'm looking change date '2014-03-04' list of dates kept in table #dates. example if date <= '2014-03-03' returns 32 records. if date <= '2014-03-04' returns 55 records. total query return 87 records. that's part i'm struggling with!

thanks everyone's far - feel we're making progress!

thanks, sam

declare @mydate smalldatetime  set @mydate = '2014-03-03';  select     '2014-03-03' snapshotdate     ,t2.pre_ppi_cycle     ,sum(isnull(t2.pre_ppi_balance, 0))as pre_balance     ,count(isnull(t2.account_number, 0)) pre_volume     ,row_number() on (partition account_number order account_number, snapshotdate      desc) row #table_1 t2 inner join ( select t2.id, mydate              #table_1 t2             t2.snapshotdate <= @mydate            ) x            on x.mydate = t2.snapshotdate            , x.id = t2.id group t2.snapshotdate, t2.pre_ppi_cycle, account_number

or

select      '2014-03-03' snapshotdate     ,t2.pre_ppi_cycle     ,sum(isnull(t2.pre_ppi_balance, 0))as pre_balance     ,count(isnull(t2.account_number, 0)) pre_volume     ,row_number() on (partition account_number order account_number, snapshotdate desc) row #table_1 t2 t2.snapshotdate in ( select mydate           #table_1 t2           t2.snapshotdate <= '2014-03-03' ) group t2.snapshotdate, t2.pre_ppi_cycle, account_number

based on latest update. following bit easier:

select  t1.capture_date ,t1.pre_ppi_cycle ,sum(isnull(t1.pre_ppi_balance, 0))as pre_balance ,count(isnull(t1.account_number, 0)) pre_volume ,row_number() on (partition t1.account_number   order t1.account_number, t1.snapshotdate desc) row #ppi_3 t1 t1.capture_date in (      select child.capture_date      #dates child      child.capture_date <= '2014-03-04') group t1.capture_date, t1.snapshotdate, t1.pre_ppi_cycle, t1.account_number

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