求一存儲過程

[bb_chen]

如題：
表一：
col1 col2
A 100
B 200
A 300
C 400
B 500
表二：
col1 col2 col3
A a1 10
A a2 20
A a3 20
B b1 40

根據表二的紀錄計算結果為：
A 50 400
B 40 700

說明結果中的50為表二中的10+20+20,40為表二中40，400為表一中的100+300，200為表一中的200+500

謝謝！

[中国风]

create table tb1(col1 varchar(10), col2 int)
insert into tb1 values('A', 100) 
insert into tb1 values('B', 200) 
insert into tb1 values('A', 300) 
insert into tb1 values('C', 400) 
insert into tb1 values('B', 500) 
create table tb2(col1 varchar(10), col2 varchar(10), col3 int)
insert into tb2 values('A', 'a1', 10 )
insert into tb2 values('A', 'a2', 20 )
insert into tb2 values('A', 'a3', 20 )
insert into tb2 values('B', 'b1', 40 )
go

select 
	a.col1,
	[col2]=(select sum(col3) from tb2 where col1=a.col1),
	[col3]=(select sum(col2) from tb1 where col1=a.col1)
from 
	tb1 a,tb2 b
where 
	a.col1=b.col1	
group by a.col1


col1       col2        col3        
---------- ----------- ----------- 
A          50          400
B          40          700

（所影响的行数为 2 行）

[bb_chen]

謝謝！

[dawugui]

select m.col1 , n.col3 , m.col2 from
(select col1 , col2 = sum(col2) from tb1 group by col1) m,
(select col1 , col3 = sum(col3) from tb2 group by col1) n
where m.col1 = n.col1

[lwl0606]

select a.Col1,T_1,T_2
from 
(select Col1 ,sum(col2) as T_1  from table1 group by col1) a
inner join 
(select Col1,sum(col3) as  T_2 from table2 group by col1) b
on a.Col1=b.Col1

view 就可以，如果要存储过程 写在存储过程里面就可以了

[dawugui]

create table tb1(col1 varchar(10), col2 int)
insert into tb1 values('A', 100) 
insert into tb1 values('B', 200) 
insert into tb1 values('A', 300) 
insert into tb1 values('C', 400) 
insert into tb1 values('B', 500) 
create table tb2(col1 varchar(10), col2 varchar(10), col3 int)
insert into tb2 values('A', 'a1', 10 )
insert into tb2 values('A', 'a2', 20 )
insert into tb2 values('A', 'a3', 20 )
insert into tb2 values('B', 'b1', 40 )
go

select m.col1 , n.col3 , m.col2 from
(select col1 , col2 = sum(col2) from tb1 group by col1) m,
(select col1 , col3 = sum(col3) from tb2 group by col1) n
where m.col1 = n.col1

drop table tb1,tb2

/*
col1       col3        col2        
---------- ----------- ----------- 
A          50          400
B          40          700

（所影响的行数为 2 行）
*/

[dawugui]

--如果取两表不匹配的col1,考虑用全连接full join 或左连接,右连接.
create table tb1(col1 varchar(10), col2 int)
insert into tb1 values('A', 100) 
insert into tb1 values('B', 200) 
insert into tb1 values('A', 300) 
insert into tb1 values('C', 400) 
insert into tb1 values('B', 500) 
create table tb2(col1 varchar(10), col2 varchar(10), col3 int)
insert into tb2 values('A', 'a1', 10 )
insert into tb2 values('A', 'a2', 20 )
insert into tb2 values('A', 'a3', 20 )
insert into tb2 values('B', 'b1', 40 )
go

select isnull(m.col1,n.col1) col1 , isnull(n.col3,0) col3 , isnull(m.col2,0) col2 from
(select col1 , col2 = sum(col2) from tb1 group by col1) m full join
(select col1 , col3 = sum(col3) from tb2 group by col1) n
on m.col1 = n.col1

drop table tb1,tb2

/*
col1       col3        col2        
---------- ----------- ----------- 
A          50          400
B          40          700
C          0           400

（所影响的行数为 3 行）
*/

[areswang]

create table tb1(col1 varchar(10), col2 int)
go
insert into tb1 values('A', 100)
insert into tb1 values('B', 200)
insert into tb1 values('A', 300)
insert into tb1 values('C', 400)
insert into tb1 values('B', 500)
create table tb2(col1 varchar(10), col2 varchar(10), col3 int)
insert into tb2 values('A', 'a1', 10 )
insert into tb2 values('A', 'a2', 20 )
insert into tb2 values('A', 'a3', 20 )
insert into tb2 values('B', 'b1', 40 )

go
create proc test
as
select a.Col1,b.col2,a.col3
from
(select Col1 ,sum(col2) as col3 from tb1 group by col1) a
inner join
(select Col1,sum(col3) as col2 from tb2 group by col1) b
on a.Col1=b.Col1

exec test

drop table tb1
drop table tb2
drop proc test