查询以获得所需格式的输出
Query to get a output in desired format
Proc type add sub multi div
1 A 1 0 1 1
1 B 2 2 0 1
输出格式应为
Proc Aadd Asub Amulti Adiv Badd Bsub Bmulti Bdiv
1 1 0 1 1 2 2 0 1
一个简单的条件聚合应该可以解决问题
Select Proc
,Aadd = max( case when type='A' then add else 0 end)
,Asub = max( case when type='A' then sub else 0 end)
,Amuti = max( case when type='A' then multi else 0 end)
,Adiv = max( case when type='A' then div else 0 end)
,Badd = max( case when type='B' then add else 0 end)
,Bsub = max( case when type='B' then sub else 0 end)
,Bmuti = max( case when type='B' then multi else 0 end)
,Bdiv = max( case when type='B' then div else 0 end)
From YourTable
Group By Proc
另一种使用 CTE 和连接的方法。
declare @table table(Proce int, type char(1), addi int, sub int, multi int, div int)
insert into @table values
(1,'A', 1, 0, 1, 1),
(1,'B', 2, 2, 0, 1);
;with cte_a as
(
SELECT proce, max(addi) as Aadd, max(sub) as Asub, max(multi) as Amulti, max(div) as Adiv
FROM @table where type = 'A'
group by proce
),cte_b as
(
SELECT proce, max(addi) as Badd, max(sub) as Bsub, max(multi) as Bmulti, max(div) as Bdiv
FROM @table where type = 'B'
group by proce
)
SELECT a.proce,a.aAdd, a.aSub, a.Amulti, a.Adiv,b.BAdd,b.bsub, b.bmulti, b.bdiv
from cte_a as a
join cte_b as b
on a.Proce = b.Proce
proce
aAdd
aSub
Amulti
Adiv
BAdd
bsub
bmulti
bdiv
1
1
0
1
1
2
2
0
1
Proc type add sub multi div
1 A 1 0 1 1
1 B 2 2 0 1
输出格式应为
Proc Aadd Asub Amulti Adiv Badd Bsub Bmulti Bdiv
1 1 0 1 1 2 2 0 1
一个简单的条件聚合应该可以解决问题
Select Proc
,Aadd = max( case when type='A' then add else 0 end)
,Asub = max( case when type='A' then sub else 0 end)
,Amuti = max( case when type='A' then multi else 0 end)
,Adiv = max( case when type='A' then div else 0 end)
,Badd = max( case when type='B' then add else 0 end)
,Bsub = max( case when type='B' then sub else 0 end)
,Bmuti = max( case when type='B' then multi else 0 end)
,Bdiv = max( case when type='B' then div else 0 end)
From YourTable
Group By Proc
另一种使用 CTE 和连接的方法。
declare @table table(Proce int, type char(1), addi int, sub int, multi int, div int)
insert into @table values
(1,'A', 1, 0, 1, 1),
(1,'B', 2, 2, 0, 1);
;with cte_a as
(
SELECT proce, max(addi) as Aadd, max(sub) as Asub, max(multi) as Amulti, max(div) as Adiv
FROM @table where type = 'A'
group by proce
),cte_b as
(
SELECT proce, max(addi) as Badd, max(sub) as Bsub, max(multi) as Bmulti, max(div) as Bdiv
FROM @table where type = 'B'
group by proce
)
SELECT a.proce,a.aAdd, a.aSub, a.Amulti, a.Adiv,b.BAdd,b.bsub, b.bmulti, b.bdiv
from cte_a as a
join cte_b as b
on a.Proce = b.Proce
proce | aAdd | aSub | Amulti | Adiv | BAdd | bsub | bmulti | bdiv |
---|---|---|---|---|---|---|---|---|
1 | 1 | 0 | 1 | 1 | 2 | 2 | 0 | 1 |