实现SQL Server中的切割字符串SplitString函数
实现SQL Server中的切割字符串SplitString函数 友好的解决某字段值的拆分问题
实现SQL Server中的切割字符串SplitString函数
有时我们要用到批量操作时都会对字符串进行拆分，可是SQL Server中却没有自带Split函数，所以要自己来实现了。没什么好说的，需要的朋友直接拿去用吧
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
/*
by kudychen 2011-9-28
*/
CREATE function [dbo].[SplitString]
(
@Input nvarchar(max), --input string to be separated
@Separator nvarchar(max)=',', --a string that delimit the substrings in the input string
@RemoveEmptyEntries bit=1 --the return value does not include array elements that contain an empty string
)
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)
