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select daibiaodui,
sum(case when mingji='一' then 1 else 0 end)as yi,
sum(case when mingji='二' then 1 else 0 end)as er,
sum(case when mingji='三' then 1 else 0 end)as san,
sum(jifen) as jifen from tb group by daibiaodui
order by daibiaodui collate Chinese_PRC_Stroke_CS_AS_KS_WS
create table zongfen ([daibiaodui] nvarchar(2),[dalei] nvarchar(2),[xiaolei] nvarchar(5),[mingji] nvarchar(1),[jifen] int)
Insert zongfen
select N'一班',N'游泳',N'女子100',N'一',4 union all
select N'一班',N'游泳',N'女子100',N'一',4 union all
select N'二班',N'游泳',N'女子100',N'三',2 union all
select N'三班',N'田径',N'女子100',N'一',8 union all
select N'四班',N'田径',N'女子100',N'二',3 union all
select N'一班',N'田径',N'女子100',N'三',2 union all
select N'二班',N'游泳',N'男子100',N'一',6 union all
select N'二班',N'游泳',N'男子100',N'二',4 union all
select N'三班',N'游泳',N'男子100',N'二',3
go
create function f_strc(@dalei varchar(20),@xiaolei varchar(20),@mingji varchar(10))
returns varchar(100)
as
begin
declare @s varchar(100)
select @s = isnull(@s+',','')+daibiaodui from zongfen
where dalei = @dalei and xiaolei= @xiaolei and mingji = @mingji
return @s
end
go
select dalei,xiaolei,dbo.f_strc(dalei,xiaolei,'一') as yi,
dbo.f_strc(dalei,xiaolei,'二') as er,
dbo.f_strc(dalei,xiaolei,'三') as san
from zongfen
group by dalei,xiaolei
create table zongfen ([daibiaodui] nvarchar(2),[dalei] nvarchar(2),[xiaolei] nvarchar(5),[mingji] nvarchar(1),[jifen] int)
Insert zongfen
select N'一班',N'游泳',N'女子100',N'一',4 union all
select N'一班',N'游泳',N'女子100',N'一',4 union all
select N'二班',N'游泳',N'女子100',N'三',2 union all
select N'三班',N'田径',N'女子100',N'一',8 union all
select N'四班',N'田径',N'女子100',N'二',3 union all
select N'一班',N'田径',N'女子100',N'三',2 union all
select N'二班',N'游泳',N'男子100',N'一',6 union all
select N'二班',N'游泳',N'男子100',N'二',4 union all
select N'三班',N'游泳',N'男子100',N'二',3
go
create function f_strc(@dalei varchar(20),@xiaolei varchar(20),@mingji varchar(10))
returns varchar(100)
as
begin
declare @s varchar(100)
select @s = isnull(@s+',','')+daibiaodui from zongfen
where dalei = @dalei and xiaolei= @xiaolei and mingji = @mingji
return @s
end
go
select dalei,xiaolei,dbo.f_strc(dalei,xiaolei,'一') as yi,
dbo.f_strc(dalei,xiaolei,'二') as er,
dbo.f_strc(dalei,xiaolei,'三') as san
from zongfen
group by dalei,xiaolei
drop table zongfen
drop function f_strc
/*
dalei xiaolei yi er san
----- ------- --------------------------------------- -------------------------- ------------------------------------
田径 女子100 三班 四班 一班
游泳 男子100 二班 二班,三班 NULL
游泳 女子100 一班,一班 NULL 二班
(所影响的行数为 3 行)
*/
---------------------------------
-- Author: htl258(Tony)
-- Date : 2009-07-21 11:45:04
---------------------------------
--> 生成测试数据表:tb
If not object_id('[tb]') is null
Drop table [tb]
Go
Create table [tb]([daibiaodui] nvarchar(2),[dalei] nvarchar(2),[xiaolei] nvarchar(5),[mingji] nvarchar(1),[jifen] int)
Insert tb
Select '一班','游泳','女子100','一',4 union all
Select '一班','游泳','女子100','一',4 union all
Select '二班','游泳','女子100','三',2 union all
Select '三班','田径','女子100','一',8 union all
Select '四班','田径','女子100','二',3 union all
Select '一班','田径','女子100','三',2 union all
Select '二班','游泳','男子100','一',6 union all
Select '二班','游泳','男子100','二',4 union all
Select '三班','游泳','男子100','二',3
Go
--Select * from tb
-->SQL查询如下:
select distinct dalei,xiaolei,
yi=stuff((select ','+[daibiaodui] from tb where dalei=t.dalei and xiaolei=t.xiaolei and [mingji]='一' for xml path('')),1,1,''),
er=stuff((select ','+[daibiaodui] from tb where dalei=t.dalei and xiaolei=t.xiaolei and [mingji]='二' for xml path('')),1,1,''),
san=stuff((select ','+[daibiaodui] from tb where dalei=t.dalei and xiaolei=t.xiaolei and [mingji]='三' for xml path('')),1,1,'')
from tb t
/*
dalei xiaolei yi er san
田径 女子100 三班 四班 一班
游泳 男子100 二班 二班,三班 NULL
游泳 女子100 一班,一班 NULL 二班
*/
二use Tempdb
go
--> -->
declare @zongfen table([daibiaodui] nvarchar(2),[dalei] nvarchar(2),[xiaolei] nvarchar(5),[mingji] nvarchar(1),[jifen] int)
Insert @zongfen
select N'一班',N'游泳',N'女子100',N'一',4 union all
select N'一班',N'游泳',N'女子100',N'一',4 union all
select N'二班',N'游泳',N'女子100',N'三',2 union all
select N'三班',N'田径',N'女子100',N'一',8 union all
select N'四班',N'田径',N'女子100',N'二',3 union all
select N'一班',N'田径',N'女子100',N'三',2 union all
select N'二班',N'游泳',N'男子100',N'一',6 union all
select N'二班',N'游泳',N'男子100',N'二',4 union all
select N'三班',N'游泳',N'男子100',N'二',3
Select
[dalei],
[xiaolei],
[yi]=isnull(stuff((select ','+[daibiaodui] from @zongfen where [dalei]=a.[dalei] and [xiaolei]=a.[xiaolei] and [mingji]='一' for xml path('')),1,1,''),''),
[er]=isnull(stuff((select ','+[daibiaodui] from @zongfen where [dalei]=a.[dalei] and [xiaolei]=a.[xiaolei] and [mingji]='二' for xml path('')),1,1,''),''),
[san]=isnull(stuff((select ','+[daibiaodui] from @zongfen where [dalei]=a.[dalei] and [xiaolei]=a.[xiaolei] and [mingji]='三'for xml path('')),1,1,''),'')
from @zongfen a
group by [dalei],[xiaolei]
dalei xiaolei yi er san
田径 女子100 三班 四班 一班
游泳 女子100 一班,一班 二班
游泳 男子100 二班 二班,三班
If not object_id('[tb]') is null
Drop table [tb]
Go
Create table [tb]([daibiaodui] nvarchar(2),[dalei] nvarchar(2),[xiaolei] nvarchar(5),[mingji] nvarchar(1),[jifen] int)
Insert tb
Select '一班','游泳','女子100','一',4 union all
Select '一班','游泳','女子100','一',4 union all
Select '二班','游泳','女子100','三',2 union all
Select '三班','田径','女子100','一',8 union all
Select '四班','田径','女子100','二',3 union all
Select '一班','田径','女子100','三',2 union all
Select '二班','游泳','男子100','一',6 union all
Select '二班','游泳','男子100','二',4 union all
Select '三班','游泳','男子100','二',3
Go
--Select * from tb
-->SQL查询如下:
select [daibiaodui],
yi = sum(case [mingji] when '一' then 1 else 0 end),
er = sum(case [mingji] when '二' then 1 else 0 end),
san = sum(case [mingji] when '三' then 1 else 0 end),
jifen = sum([jifen])
from tb
group by [daibiaodui]
order by charindex([daibiaodui],'一班二班三班四班')
(9 行受影响)
daibiaodui yi er san jifen
---------- ----------- ----------- ----------- -----------
一班 2 0 1 10
二班 1 1 1 12
三班 1 1 0 11
四班 0 1 0 3
(4 行受影响)
create function f_str(@dalei varchar(20),@xiaolei varchar(20),@mingji varchar(10))
returns varchar(100)
as
begin
declare @s varchar(100)
select @s = isnull(@s+',','')+daibiaodui from zongfen
where dalei = @dalei and xiaolei= @xiaolei and mingji = @mingji
return @s
end
go
select dalei,xiaolei,dbo.f_str(dalei,xiaolei,'一') as yi,
dbo.f_str(dalei,xiaolei,'二') as er,
dbo.f_str(dalei,xiaolei,'三') as san
from zongfen
group by dalei,xiaolei
--结果一
select daibiaodui,
yi=sum(case when mingji=N'一' then 1 else 0 end),
er=sum(case when mingji=N'二' then 1 else 0 end),
san=sum(case when mingji=N'三' then 1 else 0 end),
jifen=sum(jifen)
from zongfen
group by daibiaodui
---------------------------------
-- Author: htl258(Tony)
-- Date : 2009-07-21 11:45:04
---------------------------------
--> 生成测试数据表:tb
If not object_id('[tb]') is null
Drop table [tb]
Go
Create table [tb]([daibiaodui] nvarchar(2),[dalei] nvarchar(2),[xiaolei] nvarchar(5),[mingji] nvarchar(1),[jifen] int)
Insert tb
Select '一班','游泳','女子100','一',4 union all
Select '一班','游泳','女子100','一',4 union all
Select '二班','游泳','女子100','三',2 union all
Select '三班','田径','女子100','一',8 union all
Select '四班','田径','女子100','二',3 union all
Select '一班','田径','女子100','三',2 union all
Select '二班','游泳','男子100','一',6 union all
Select '二班','游泳','男子100','二',4 union all
Select '三班','游泳','男子100','二',3
Go
--Select * from tb
-->SQL查询如下:
select [daibiaodui],
yi = sum(case [mingji] when '一' then [jifen] else 0 end),
er = sum(case [mingji] when '二' then [jifen] else 0 end),
san = sum(case [mingji] when '三' then [jifen] else 0 end),
jifen = sum([jifen])
from tb
group by [daibiaodui]
order by charindex([daibiaodui],'一班二班三班四班')
/*
daibiaodui yi er san jifen
---------- ----------- ----------- ----------- -----------
一班 8 0 2 10
二班 6 4 2 12
三班 8 3 0 11
四班 0 3 0 3
(4 行受影响)
*/
一--******************************************************************
-- 合并列值
--******************************************************************
表结构,数据如下:
id value
----- ------
1 aa
1 bb
2 aaa
2 bbb
2 ccc
需要得到结果:
id values
------ -----------
1 aa,bb
2 aaa,bbb,ccc
即:group by id, 求 value 的和(字符串相加)
1. 旧的解决方法(在sql server 2000中只能用函数解决。)
--===================================================================
create table tb(id int, value varchar(10))
insert into tb values(1, 'aa')
insert into tb values(1, 'bb')
insert into tb values(2, 'aaa')
insert into tb values(2, 'bbb')
insert into tb values(2, 'ccc')
go
--1. 创建处理函数
CREATE FUNCTION dbo.f_strUnite(@id int)
RETURNS varchar(8000)
AS
BEGIN
DECLARE @str varchar(8000)
SET @str = ''
SELECT @str = @str + ',' + value FROM tb WHERE id=@id
RETURN STUFF(@str, 1, 1, '')
END
GO
-- 调用函数
SELECt id, value = dbo.f_strUnite(id) FROM tb GROUP BY id
drop table tb
drop function dbo.f_strUnite
go
/*
id value
----------- -----------
1 aa,bb
2 aaa,bbb,ccc
(所影响的行数为 2 行)
*/
--===================================================================================
2. 新的解决方法(在sql server 2005中用OUTER APPLY等解决。)
create table tb(id int, value varchar(10))
insert into tb values(1, 'aa')
insert into tb values(1, 'bb')
insert into tb values(2, 'aaa')
insert into tb values(2, 'bbb')
insert into tb values(2, 'ccc')
go
-- 查询处理
SELECT * FROM(SELECT DISTINCT id FROM tb)A OUTER APPLY(
SELECT [values]= STUFF(REPLACE(REPLACE(
(
SELECT value FROM tb N
WHERE id = A.id
FOR XML AUTO
), ' <N value="', ','), '"/>', ''), 1, 1, '')
)N
drop table tb
/*
id values
----------- -----------
1 aa,bb
2 aaa,bbb,ccc
(2 行受影响)
*/
--SQL2005中的方法2
create table tb(id int, value varchar(10))
insert into tb values(1, 'aa')
insert into tb values(1, 'bb')
insert into tb values(2, 'aaa')
insert into tb values(2, 'bbb')
insert into tb values(2, 'ccc')
go
select id, [values]=stuff((select ','+[value] from tb t where id=tb.id
for xml path('')), 1, 1, '')
from tb
group by id
/*
id values
----------- --------------------
1 aa,bb
2 aaa,bbb,ccc
(2 row(s) affected)
*/
drop table tb
use Tempdb
go
--> -->
declare @zongfen table([daibiaodui] nvarchar(2),[dalei] nvarchar(2),[xiaolei] nvarchar(5),[mingji] nvarchar(1),[jifen] int)
Insert @zongfen
select N'一班',N'游泳',N'女子100',N'一',4 union all
select N'一班',N'游泳',N'女子100',N'一',4 union all
select N'二班',N'游泳',N'女子100',N'三',2 union all
select N'三班',N'田径',N'女子100',N'一',8 union all
select N'四班',N'田径',N'女子100',N'二',3 union all
select N'一班',N'田径',N'女子100',N'三',2 union all
select N'二班',N'游泳',N'男子100',N'一',6 union all
select N'二班',N'游泳',N'男子100',N'二',4 union all
select N'三班',N'游泳',N'男子100',N'二',3
Select daibiaodui,
yi=sum(case when mingji=N'一' then 1 else 0 end),
er=sum(case when mingji=N'二' then 1 else 0 end),
san=sum(case when mingji=N'三' then 1 else 0 end),
jifen=sum(jifen)
from zongfen
group by daibiaodui
select daibiaodui,
sum(case when mingji = '一' then 1 else 0 end) as yi,
sum(case when mingji = '二' then 1 else 0 end) as er,
sum(case when mingji = '三' then 1 else 0 end) as san,
count(1) as 'jifen'
from zongfen
group by daibiaodui
select daibiaodui,
sum(case when mingji = '一' then 1 else 0 end) as yi,
sum(case when mingji = '二' then 1 else 0 end) as er,
sum(case when mingji = '三' then 1 else 0 end) as san,
sum( jifen ) as jifen
from zongfen
group by daibiaodui