标签:关于 function 分隔符 符号 gets bsp select ret 字符串分割
ALTER function [dbo].[GetStr]( @str varchar(1024), --要分割的字符串
@split varchar(10), --分隔符号
@index int --取第几个元素
)
returns varchar(1024)
as
begin
declare @location int
declare @start int
declare @next int
declare @seed int
set @str=ltrim(rtrim(@str))
set @start=1
set @next=1
set @seed=len(@split)
set @location=charindex(@split,@str)
while @location<>0 and @index>@next
begin
set @start=@location+@seed
set @location=charindex(@split,@str,@start)
set @next=@next+1
end
if @index>@next
begin
return null
end
if @location =0
begin
select @location =len(@str)+1
end
return substring(@str,@start,@location-@start)
标签:关于 function 分隔符 符号 gets bsp select ret 字符串分割
原文地址:https://www.cnblogs.com/jpf111/p/12290159.html