逗号分割的字段分成多条数据

[Lukeskywalker]

A表中有样的数据，
序号 姓名 考核事项 扣款
1 张三(10.00),李四(20.00),刘大(30.00) aaaaaaa 60 （三个相加）
2 王五(10.00) bbbbb 10

如何数据做成

序号 姓名 扣款
1 张三 10.00
2 李四 20.00
3 刘大 30.00
4 王五 10.00

[--小F--]

/****************************************************************************************************************************************************** 
合并分拆表数据 

整理人：中国风(Roy) 

日期:2008.06.06 
******************************************************************************************************************************************************/ 

--> --> (Roy)生成測試數據 

if not object_id('Tab') is null 
    drop table Tab 
Go 
Create table Tab([Col1] int,[Col2] nvarchar(1)) 
Insert Tab 
select 1,N'a' union all 
select 1,N'b' union all 
select 1,N'c' union all 
select 2,N'd' union all 
select 2,N'e' union all 
select 3,N'f' 
Go 

合并表: 

SQL2000用函数: 

go 
if object_id('F_Str') is not null 
    drop function F_Str 
go 
create function F_Str(@Col1 int) 
returns nvarchar(100) 
as 
begin 
    declare @S nvarchar(100) 
    select @S=isnull(@S+',','')+Col2 from Tab where Col1=@Col1 
    return @S 
end 
go 
Select distinct Col1,Col2=dbo.F_Str(Col1) from Tab 

go 

SQL2005用XML: 

方法1: 

select 
    a.Col1,Col2=stuff(b.Col2.value('/R[1]','nvarchar(max)'),1,1,'') 
from 
    (select distinct COl1 from Tab) a 
Cross apply 
    (select COl2=(select N','+Col2 from Tab where Col1=a.COl1 For XML PATH(''), ROOT('R'), TYPE))b 

方法2: 

select 
    a.Col1,COl2=replace(b.Col2.value('/Tab[1]','nvarchar(max)'),char(44)+char(32),char(44)) 
from 
    (select distinct COl1 from Tab) a 
cross apply 
    (select Col2=(select COl2 from Tab  where COl1=a.COl1 FOR XML AUTO, TYPE) 
                .query(' <Tab> 
                {for $i in /Tab[position() <last()]/@COl2 return concat(string($i),",")} 
                {concat("",string(/Tab[last()]/@COl2))} 
                </Tab>') 
                )b 

SQL05用CTE: 

;with roy as(select Col1,Col2,row=row_number()over(partition by COl1 order by COl1) from Tab) 
,Roy2 as 
(select COl1,cast(COl2 as nvarchar(100))COl2,row from Roy where row=1 
union all 
select a.Col1,cast(b.COl2+','+a.COl2 as nvarchar(100)),a.row from Roy a join Roy2 b on a.COl1=b.COl1 and a.row=b.row+1) 
select Col1,Col2 from Roy2 a where row=(select max(row) from roy where Col1=a.COl1) order by Col1 option (MAXRECURSION 0) 


生成结果: 
/* 
Col1        COl2 
----------- ------------ 
1          a,b,c 
2          d,e 
3          f 

(3 行受影响) 
*/ 


--参考
拆分表:

--> --> (Roy)生成測試數據
 
if not object_id('Tab') is null
    drop table Tab
Go
Create table Tab([Col1] int,[COl2] nvarchar(5))
Insert Tab
select 1,N'a,b,c' union all
select 2,N'd,e' union all
select 3,N'f'
Go

--SQL2000用辅助表:
if object_id('Tempdb..#Num') is not null
    drop table #Num
go
select top 100 ID=Identity(int,1,1) into #Num from syscolumns a,syscolumns b
Select 
    a.Col1,COl2=substring(a.Col2,b.ID,charindex(',',a.Col2+',',b.ID)-b.ID) 
from 
    Tab a,#Num b
where
    charindex(',',','+a.Col2,b.ID)=b.ID --也可用 substring(','+a.COl2,b.ID,1)=','
--2000不使用辅助表
Select
    a.Col1,COl2=substring(a.Col2,b.number,charindex(',',a.Col2+',',b.number)-b.number) 
from 
    Tab a join master..spt_values  b 
    ON B.type='p' AND B.number BETWEEN 1 AND LEN(A.col2)
where
     substring(','+a.COl2,b.number,1)=','


SQL2005用Xml:

select 
    a.COl1,b.Col2
from 
    (select Col1,COl2=convert(xml,'<root><v>'+replace(COl2,',','</v><v>')+'</v></root>') from Tab)a
outer apply
    (select Col2=C.v.value('.','nvarchar(100)') from a.COl2.nodes('/root/v')C(v))b




SQL05用CTE:

;with roy as 
(select Col1,COl2=cast(left(Col2,charindex(',',Col2+',')-1) as nvarchar(100)),Split=cast(stuff(COl2+',',1,charindex(',',Col2+','),'') as nvarchar(100)) from Tab
union all
select Col1,COl2=cast(left(Split,charindex(',',Split)-1) as nvarchar(100)),Split= cast(stuff(Split,1,charindex(',',Split),'') as nvarchar(100)) from Roy where split>''
)
select COl1,COl2 from roy order by COl1 option (MAXRECURSION 0)

生成结果:
/*
Col1        COl2
----------- -----
1           a
1           b
1           c
2           d
2           e
3           f
*/

[jamk]

话说LS的真快~》。。。。

[jamk]

if not object_id('Tab') is null
    drop table Tab
Go
Create table Tab(序号 INT,姓名 NVARCHAR (50),考核事项 VARCHAR(10),扣款 INT)
INSERT INTO Tab
SELECT 1, '张三(10.00),李四(20.00),刘大(30.00)', 'aaaaaaa', 60 UNION ALL 
SELECT 2, '王五(10.00)', 'bbbbb', 10

SELECT 序号, LEFT(姓名,2) AS 姓名,REPLACE(RIGHT(姓名,6),')' ,'')AS 扣款 FROM (
    select 
    a.序号,b.姓名
from 
    (select 序号,姓名=convert(xml,'<root><v>'+replace(姓名,',','</v><v>')+'</v></root>') from Tab)a
outer apply
    (select 姓名=C.v.value('.','nvarchar(100)') from a.姓名.nodes('/root/v')C(v))b) aa

[jamk]

--结果
序号     姓名     扣款  
1	张三	10.00
1	李四	20.00
1	刘大	30.00
2	王五	10.00

[dawugui]

Create table Tab(序号 INT,姓名 NVARCHAR (50),考核事项 VARCHAR(10),扣款 INT)
INSERT INTO Tab
SELECT 1, '张三(10.00),李四(20.00),刘大(30.00)', 'aaaaaaa', 60 UNION ALL 
SELECT 2, '王五(10.00)', 'bbbbb', 10
go

select 序号 , 
       姓名 = left(姓名,charindex('(',姓名) - 1) ,
       扣款 = substring(姓名,charindex('(',姓名) + 1 , len(姓名) - charindex('(',姓名) - 1)
from
(
select a.序号 , 姓名 = substring(a.姓名 , b.number , charindex(',' , a.姓名 + ',' , b.number) - b.number) 
from tab a join master..spt_values  b 
on b.type='p' and b.number between 1 and len(a.姓名)
where substring(',' + a.姓名 , b.number , 1) = ','
) t

drop table Tab

/*
序号          姓名                                                 扣款                                                 
----------- -------------------------------------------------- -------------------------------------------------- 
1           张三                                                 10.00
1           李四                                                 20.00
1           刘大                                                 30.00
2           王五                                                 10.00

（所影响的行数为 4 行）
*/