SQL里面用自定义Split()完成个性化需求
前端之家收集整理的这篇文章主要介绍了
SQL里面用自定义Split()完成个性化需求,
前端之家小编觉得挺不错的,现在分享给大家,也给大家做个参考。
<div class="codetitle"><a style="CURSOR: pointer" data="13875" class="copybut" id="copybut13875" onclick="doCopy('code13875')"> 代码如下:
<div class="codebody" id="code13875">
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE function [dbo].[SplitString]
(
@Input nvarchar(max),
@Separator nvarchar(max)=',',
@RemoveEmptyEntries bit=1
)
returns @TABLE table
(
[Id] int identity(1,1),
[Value] nvarchar(max)
)
as
begin
declare @Index int,@Entry nvarchar(max)
set @Index = charindex(@Separator,@Input)
while (@Index>0)
begin
set @Entry=ltrim(rtrim(substring(@Input,1,@Index-1)))
if (@RemoveEmptyEntries=0) or (@RemoveEmptyEntries=1 and @Entry<>'')
begin
insert into @TABLE([Value]) Values(@Entry)
end
set @Input = substring(@Input,@Index+datalength(@Separator)/2,len(@Input))
set @Index = charindex(@Separator,@Input)
end
set @Entry=ltrim(rtrim(@Input))
if (@RemoveEmptyEntries=0) or (@RemoveEmptyEntries=1 and @Entry<>'')
begin
insert into @TABLE([Value]) Values(@Entry)
end
return
end