SQLServer字符串批量拆分得方法

其实拆分和批量拆分的方法是一样的，所谓批量就是用out apply来调用单个拆分函数。

/*
SQLServer字符串拆分函数,by jinjazz

--原始数据
id names
----------- --------------------
1 jinjazz,blog,csdn
2 sql,ms

--生成的数据
id rn name
----------- ----------- ----------
1 1 jinjazz
1 2 blog
1 3 csdn
2 1 sql
2 2 ms

*/

setnocounton
usetempdb
go
if (object_id ('f_test' ) isnotnull )
dropfunctionf_test
go
createfunctionf_test (@avarchar (max ))
returns @ttable (rnint , vvarchar (max ))
as
begin
insertinto @t
select b. *from (
selectconvert (xml , '<v>' + replace (@a , ',' , '</v><v>' )+ '</v>' ) asf )a
outerapply
(
SELECTrn = row_number ()over (orderbygetdate ()),t . c . value ('.' , 'varchar(max)' ) ASf
FROMa . f . nodes ('//v' ) ASt (c )
)b
return
end
go

declare @ttable (idint , namesvarchar (20 ))
insertinto @tselect1 , 'jinjazz,blog,csdn'
insertinto @tselect2 , 'sql,ms'

select*from @t
selecta . id , rn , b. vasnamefrom @taouterapplydbo . f_test (a . names ) b

setnocountoff

本文来自优快云博客，转载请标明出处：http://blog.youkuaiyun.com/jinjazz/archive/2009/08/27/4490912.aspx