t1

id parentid

m a

n a

e m

f m

x f

y f

z b

t2

row id amount

1 a 13.00

2 b 20.00

3 e 20.00

4 f 20.00

5 x 20.00

6 y 20.00

7 z 20.00

8 e 12.00

9 x 11.00

10 f 13.00

如何得出如下結(jié)果：

row id amount

7 x 20.00

11 x 11.00

x小計(jì) 31.00

8 y 20.00

y小計(jì) 20.00

6 f 20.00

12 f 13.00

f小計(jì) 84.00

5 e 20.00

10 e 12.00

e小計(jì) 32.00

3 m 14.00

m小計(jì) 130.00

4 n 13.00

n小計(jì) 13.00

1 a 13.00

a小計(jì) 156.00

9 z 20.00

z小計(jì) 20.00

2 b 20.00

b小計(jì) 40.00

總計(jì) 196.00

實(shí)現(xiàn)程序

-- 示例數(shù)據(jù)

CREATE TABLE t1(

id char(1),

parentid char(1)

);

INSERT t1

SELECT 'm', 'a' UNION ALL

SELECT 'n', 'a' UNION ALL

SELECT 'e', 'm' UNION ALL

SELECT 'f', 'm' UNION ALL

SELECT 'x', 'f' UNION ALL

SELECT 'y', 'f' UNION ALL

SELECT 'z', 'b';

CREATE TABLE t2(

row int,

id char(1),

amount decimal(10, 2)

);

INSERT t2

SELECT '1', 'a', '13.00' UNION ALL

SELECT '2', 'b', '20.00' UNION ALL

SELECT '3', 'e', '20.00' UNION ALL

SELECT '4', 'f', '20.00' UNION ALL

SELECT '5', 'x', '20.00' UNION ALL

SELECT '6', 'y', '20.00' UNION ALL

SELECT '7', 'z', '20.00' UNION ALL

SELECT '8', 'e', '12.00' UNION ALL

SELECT '9', 'x', '11.00' UNION ALL

SELECT '10', 'f', '13.00';

GO

-- 統(tǒng)計(jì)

-- 逐級(jí)匯總

declare @l int

set @l=1

select

A.[id],

[pid] = A.parentid,

[sumnum] = SUM(B.amount),

level=case

when exists(select * from t1 where parentid=a.[id])

then @l-1 else @l end

into [#]

from t1 A

LEFT JOIN t2 B

ON A.id = B.id

GROUP BY A.id, A.parentid;

if @@row/42852.htm target=_blank >count>0

create index IDX_#_id_pid on [#]([id],[pid])

else

set @l=999

while @@rowcount>0 or @l=1

begin

set @l=@l+1

update a set level=@l,[sumnum]=isnull(a.[sumnum],0)+isnull(b.[sumnum],0)

from [#] a,(

select aa.pid,[sumnum]=sum(aa.[sumnum])

from [#] aa,(

select distinct [pid] from [#]

where level=@l-1

)bb where aa.[pid]=bb.[pid]

AND NOT EXISTS(

SELECT * FROM [#] WHERE [PID]=aa.[PID] AND [Level]=0)

GROUP BY aa.[PID]

having sum(case when aa.level=0 then 1 else 0 end)=0

)b where a.[id]=b.[pid]

end

-- 最終結(jié)果

SELECT

row = CASE

WHEN GROUPING(A.row) = 0 THEN RTRIM(A.row)

ELSE N''

END,

id = CASE

WHEN GROUPING(A.row) = 0 THEN A.id

WHEN GROUPING(A.id) = 0 THEN A.id + '小計(jì)'

ELSE N'總計(jì)'

END,

amount = CASE

WHEN GROUPING(A.row) = 0 THEN SUM(A.amount)

WHEN GROUPING(A.id) = 0 THEN ISNULL((SELECT SUM(B.sumnum) FROM # B WHERE A.id = B.id), SUM(A.amount))

ELSE SUM(A.amount)

END

FROM t2 A

GROUP BY A.id, A.row WITH ROLLUP;

drop table [#]

GO

DROP TABLE t1, t2;

/*-- 結(jié)果

row id amount

------------ ----- ---------------------------------------

1 a 13.00

a小計(jì) 13.00

2 b 20.00

b小計(jì) 20.00

3 e 20.00

8 e 12.00

e小計(jì) 32.00

4 f 20.00

10 f 13.00

f小計(jì) 84.00

5 x 20.00

9 x 11.00

x小計(jì) 31.00

6 y 20.00

y小計(jì) 20.00

7 z 20.00

z小計(jì) 20.00

總計(jì) 169.00

(18 行受影響)

--*/

總結(jié)

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