-----------创建实现split功能 的函数------------ create function f_split(@SourceSql varchar(8000),@StrSeprate varchar(10)) returns @temp table(a varchar(100)) 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
-----------创建实现split并去重功能 的函数------------ create function SplitAndDistinct(@SourceStr varchar(500),@StrSeprate varchar(10)) returns varchar(500) AS begin declare @pos int declare @ret varchar(20) declare @table table(ret varchar(20)) declare @SplitAndDistinctStr varchar(500) select @SourceStr = @SourceStr + @StrSeprate select @pos = charindex(@StrSeprate,@SourceStr) while @pos > 0 begin select @ret = substring(@SourceStr,1,@pos-1) insert into @table select @ret select @SourceStr = stuff(@SourceStr,1,@pos,'') select @pos = charindex(@StrSeprate,@SourceStr) end select @SplitAndDistinctStr = '' select @SplitAndDistinctStr = @SplitAndDistinctStr + @StrSeprate + ret from (select distinct ret from @table) t return @SplitAndDistinctStr end GO
-----------测试------------
select distinct * from dbo.f_split('123|abc|000|777|000 |111', '|') Go select dbo.SplitAndDistinct('123|abc|000|777|000|111 ', '|')
GO