复制代码 代码如下:

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

函数、表都建好了，下面调用测试一下吧：

复制代码 代码如下:

declare @str1 varchar(max), @str2 varchar(max), @str3 varchar(max)

set @str1 = '1,2,3'

set @str2 = '1###2###3'

set @str3 = '1###2###3###'

select [Value] from [dbo].[SplitString](@str1, ',', 1)

select [Value] from [dbo].[SplitString](@str2, '###', 1)

select [Value] from [dbo].[SplitString](@str3, '###', 0)

结果，截个图来看一下：