SQL server字符串分割成表

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER function [dbo].[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

调用 dbo.f_split(@userIdStr,',')

@userIdStr=1235123,235123623,123341235,234345234,2346424

第二个参数为你所按照某字符分割

最后返回一个表类型 table；

把查出来的表一个单列转换成字符串用，隔开。return=1235123,235123623,123341235,234345234,2346424

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER FUNCTION [dbo].[f_GetUserIdStr]
(
    @userId dbo.UserIdInfo READONLY
)
RETURNS NVARCHAR(4000)
AS
BEGIN

DECLARE @uidStr NVARCHAR(4000)

SET @uidStr =STUFF((SELECT ','+CAST(UserId AS NVARCHAR(1024)) FROM @userId for xml path('')),1,1,'')  

RETURN @uidStr

END

调用 SET @uisStr=dbo.f_GetUserIdStr(@userIdInfo)

最后返回字符串；

原文地址：https://www.cnblogs.com/ya-jun/p/12058921.html