获取日期时间唯一编号 SQLServer存储过程和函数的写法

GO
/****** Object:  StoredProcedure [dbo].[e_get_datetimestrguid]    Script Date: 12/27/2012 15:07:38 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:		<hsg>
-- Create date: <2012-12-27>
-- Description:	<获取日期时间唯一编号>
-- 调用方式：EXECUTE dbo.e_get_datetimestrguid;
-- =============================================
ALTER PROCEDURE [dbo].[e_get_datetimestrguid]
-- Add the parameters for the stored procedure here
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
-- Declare the return variable here
DECLARE @t_dt varchar(30);
declare @rd_num float;
declare @rd_str varchar(10);

-- Add the T-SQL statements to compute the return value here
set @t_dt=convert(varchar,getdate(),21);
set @t_dt=replace(@t_dt,'-','');
set @t_dt=replace(@t_dt,':','');
set @t_dt=replace(@t_dt,'.','');
set @t_dt=replace(@t_dt,' ','');
-- Return the result of the function
--生成一个椭机数
select @rd_num=floor(Rand()*99999);
set @rd_str=convert(varchar,@rd_num);
--合并一个
select @t_dt+@rd_str;
END

/****** Object:  UserDefinedFunction [dbo].[a_get_datetimestrguid]    Script Date: 12/27/2012 14:33:29 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:		<hsg>
-- Create date: <2012-12-27>
-- Description:	<获取日期时间唯一编号>
-- 调用方式：select dbo.a_get_datetimestrguid();
-- =============================================
ALTER FUNCTION [dbo].[a_get_datetimestrguid]
(
)
RETURNS varchar(30)
AS
BEGIN
-- Declare the return variable here
DECLARE @t_dt varchar(30);
declare @rd_num float;
declare @rd_str varchar(10);

-- Add the T-SQL statements to compute the return value here
set @t_dt=convert(varchar,getdate(),21);
set @t_dt=replace(@t_dt,'-','');
set @t_dt=replace(@t_dt,':','');
set @t_dt=replace(@t_dt,'.','');
set @t_dt=replace(@t_dt,' ','');
-- Return the result of the function
RETURN @t_dt;
END