sql 拆分字符串, 表值函数f_split的使用

在数据库中新建一个表值函数f_split:

函数f_split的方法体:

/****** Object:  UserDefinedFunction [dbo].[f_split]    Script Date: 04/18/2019 15:05:07 ******/
IF  EXISTS (SELECT * FROM sys.objects WHERE object_id = OBJECT_ID(N'[dbo].[f_split]') AND type in (N'FN', N'IF', N'TF', N'FS', N'FT'))
DROP FUNCTION [dbo].[f_split]
GO



/****** Object:  UserDefinedFunction [dbo].[f_split]    Script Date: 04/18/2019 15:05:07 ******/
SET ANSI_NULLS ON
GO

SET QUOTED_IDENTIFIER ON
GO

create function [dbo].[f_split](@SourceSql varchar(max),@StrSeprate varchar(10))
returns @temp table(a varchar(max))
as 
begin
declare @i int
set @SourceSql=rtrim(ltrim(@SourceSql))
set @i=charindex(@StrSeprate,@SourceSql)
while @i>=1
begin
insert @temp values(left(@SourceSql,@i-1))
set @SourceSql=substring(@SourceSql,@i+1,len(@SourceSql)-@i)
set @i=charindex(@StrSeprate,@SourceSql)
end
if @SourceSql<>'\'
insert @temp values(@SourceSql)
return 
end
GO

使用实例::

SELECT IDENTITY(INT,1,1) ID, a INTO #tb_Ticket FROM dbo.f_split('111,222,333',',')

select * from  #tb_Ticket

执行以上语句的结果:

 可以利用f_split函数把字符串拆分成表,然后进行需要的操作.