sql字符串分割split函数

sql字符串分割split函数

使用指定的字符分割字符串。

思路：1，先计算出指定的分割字符在字符串中的索引，

2.然后再分割字符串。

sql代码如下：

declare @strorder nvarchar(200)
declare @ismulorder int
declare @firstOrder nvarchar(200)
declare @secondOrder nvarchar(200)

set @strorder='LastModifyDate Desc,OurPrice Asc'

select CHARINDEX(',',@strorder,0)
--select LEN(@strorder)
--select SUBSTRING(@strorder,0,CHARINDEX(',',@strorder,0))
--select SUBSTRING(@strorder,CHARINDEX(',',@strorder,0)+1,LEN(@strorder))
set @ismulorder=CHARINDEX(',',@strorder,0)
if @ismulorder>0
begin
set @firstOrder ='p.'+SUBSTRING(@strorder,0,CHARINDEX(',',@strorder,0))
set @secondOrder='p.'+SUBSTRING(@strorder,CHARINDEX(',',@strorder,0)+1,LEN(@strorder))
set @strorder=@firstOrder+','+@secondOrder
end

select @strorder

利用split函数

create function [dbo].[split]
(
@SourceSql varchar(8000),
@StrSeprate varchar(10)
)
returns @temp table(F1 varchar(100))
as
begin
declare @i int
set @SourceSql = rtrim(ltrim(@SourceSql))
set @i = charindex(@StrSeprate,@SourceSql)
while @i >= 1
begin
if len(left(@SourceSql,@i-1))>0
begin
insert @temp values(left(@SourceSql,@i-1))
end
set @SourceSql=substring(@SourceSql,@i+1,len(@SourceSql)-@i)
set @i=charindex(@StrSeprate,@SourceSql)
end
if @SourceSql ''
insert @temp values(@SourceSql)
return
end

select * from split(',,777,,11,,888,88,,1122,888,88,77,,00,,00',',')