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--> ²âÊÔÊý¾Ý: @a
declare @a table (a_date datetime,qtime varchar(5), a_log varchar(1),a_rs int,a_ys int)
insert into @a
select '2009-11-1','07:00','T',1,7 union all
select '2009-11-1','07:00','T',2,8 union all
select '2009-11-1','07:00','T',2,8 union all
select '2009-11-1','08:00','T',3,9 union all
select '2009-11-1','08:00','T',4,10 union all
select '2009-11-1','09:00','F',4,10

select a_date,sum(b.a_rs) as a_rs,sum(b.a_ys) as a_ys,
bc1=sum(case when a_log='T' then 1 else 0 end ),
bc2=sum(case when a_log='F' then 1 else 0 end )
from (
select a_date,qtime,a_log,sum(a_rs) as a_rs ,sum(a_ys) as a_ys from @a group by a_date,qtime,a_log)b group by a_date,a_log


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SQL code:
select
a_date,
sum(case when a_log='T' then a_rs else 0 end) as a_rs,
sum(case when a_log='F' then a_ys else 0 end) as a_ys,
bc1=sum(case when a_log='T' then 1 else 0 end ),
bc2=sum(case when a_log='F' then 1 else 0 end )
from @a
group by a_date



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SQL codeselect
a_date,sum(casewh


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