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写了一个获取符号间隔字符串的函数，原先代码如下
CREATE FUNCTION funGetSubStr
(
?-- Add the parameters for the function here
?@StrParams nvarchar(4000),
?@char char(1)=N'1'
)
RETURNS nvarchar(4000)
AS
BEGIN
?declare? --@str? varchar(300),
?@id? varchar(3000),
?@m? int,
?@n? int?
?--set? @str='a,b,c,d,e'?
?--set? @m=CHARINDEX(',',@str)?
?--set? @n=1?
?--WHILE? @m>0?
?--BEGIN?
?--??? set? @id=substring(@str,@n,@m-@n)?
?--??? print? @id?
?--??? set? @n=@m+1?
?--??? set? @m=CHARINDEX(',@str,@n)?
?--END
?set @m=charindex(@char,@strparams)
?set @n=1
?if @m>0
?begin
??set @id=substring(@strparams,@m,@m-@n)
???return @id
?end
?else
?begin
return null
?end
END
GO
sqlserver提示，函数最后一句必须是return语句,后改为如下
?
-- ================================================
-- Template generated from Template Explorer using:
-- Create Scalar Function (New Menu).SQL
--
-- Use the Specify Values for Template Parameters
-- command (Ctrl-Shift-M) to fill in the parameter
-- values below.
--
-- This block of comments will not be included in
-- the definition of the function.
-- ================================================
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:??<Author,Name>
-- Create date: <Create Date,>
-- Description:?<Description,>
-- =============================================
CREATE FUNCTION funGetSubStr
(
?-- Add the parameters for the function here
?@StrParams nvarchar(4000),@m-@n)
?end
?else
?begin
??set @id=null
?end
???return @id
END
GO
?
通过。
（编辑：李大同）
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