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

如何得出如下結果：

row id amount

7 x 20.00

11 x 11.00

x小計 31.00

8 y 20.00

y小計 20.00

6 f 20.00

12 f 13.00

f小計 84.00

5 e 20.00

10 e 12.00

e小計 32.00

3 m 14.00

m小計 130.00

4 n 13.00

n小計 13.00

1 a 13.00

a小計 156.00

9 z 20.00

z小計 20.00

2 b 20.00

b小計 40.00

總計 196.00

實現程序

-- 示例數據

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

-- 統計

-- 逐級匯總

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'

ELSE N'總計'

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;

/*-- 結果

row id amount

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

1 a 13.00

a小計 13.00

2 b 20.00

b小計 20.00

3 e 20.00

8 e 12.00

e小計 32.00

4 f 20.00

10 f 13.00

f小計 84.00

5 x 20.00

9 x 11.00

x小計 31.00

6 y 20.00

y小計 20.00

7 z 20.00

z小計 20.00

總計 169.00

(18 行受影響)

--*/

總結

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