如何在存储过程里面分解字符串进行动态查询？

[djfu]

create proc [dbo].[Query_Names]
@names varchar(500)='', --名称列表，用,隔开

其中参数names包含的是多个以逗号,分开的名字，
现在要用动态分开识别这些名字，然后组织成一个SQL 语句执行。

例如
:
exec Query_Names 'Mary,Jack,Rose,Jodan,Kaiwen'


解析以后sql 语句如下：

select * from Name_Table
where Name in ('Mary', 'Jack', 'Rose', 'Jodan', 'kaiwen')

[dawugui]

/*
功能：实现split功能的函数
*/

create function dbo.fn_split 
(
@inputstr varchar(8000), 
@seprator varchar(10)
)
returns @temp table (a varchar(200))
as 

begin
declare @i int

set @inputstr = rtrim(ltrim(@inputstr))
set @i = charindex(@seprator, @inputstr)

while @i >= 1
begin
insert @temp values(left(@inputstr, @i - 1))

set @inputstr = substring(@inputstr, @i + 1, len(@inputstr) - @i)
set @i = charindex(@seprator, @inputstr)
end

if @inputstr <> '\'
insert @temp values(@inputstr)

return 
end
go

--调用

declare @s varchar(1000)

set @s='1,2,3,4,5,6,7,8,55'

select * from dbo.fn_split(@s,',')

drop function dbo.fn_split 

[dawugui]

/*
功能：实现split功能的函数
*/

create function dbo.fn_split 
(
@inputstr varchar(8000), 
@seprator varchar(10)
)
returns @temp table (a varchar(200))
as 

begin
declare @i int

set @inputstr = rtrim(ltrim(@inputstr))
set @i = charindex(@seprator, @inputstr)

while @i >= 1
begin
insert @temp values(left(@inputstr, @i - 1))

set @inputstr = substring(@inputstr, @i + 1, len(@inputstr) - @i)
set @i = charindex(@seprator, @inputstr)
end

if @inputstr <> '\'
insert @temp values(@inputstr)

return 
end
go

--调用

declare @s varchar(1000)

set @s='Mary,Jack,Rose,Jodan,Kaiwen' 

select * from dbo.fn_split(@s,',')

drop function dbo.fn_split 


/*
a                     
----------------------
Mary
Jack
Rose
Jodan
Kaiwen

（所影响的行数为 5 行）
*/

[昵称被占用了]

create proc [dbo].[Query_Names] 
  @names    varchar(500)='',  --名称列表，用,隔开 

as
declare @Names1 varchar(1000)
set @names1=replace(@names,',',''',''')
exec('
select * from Name_Table 
where Name in ('''+@names1+''')
')