有关存储过程和用户​​定义功能的问题 [英] question about stored Procedure and User-definde function

问题描述

什么是存储过程和用户​​定义函数以及它们在sql server 2005中的区别?

what are the stored Procedure and User-definde function and difference between them in sql server 2005

推荐答案

用于创建存储函数的方法首先单击数据库->可编程性->函数->表值函数或sclar值函数，然后右键单击并根据需要选择新的标量值或表值函数.
例如:->

for creating stored function first click on database -> programmability->function->table-value functions or sclar-valued functions then right click and select new scalr-value or table-value function as you want.
example:->

--select * from DatabaseName.dbo.split('CON,CON1,CON2',',')
Create FUNCTION [dbo].[Split](@String varchar(max), @Delimiter char(1))
returns @temptable TABLE (items varchar(max))
as
begin
    declare @idx int
    declare @slice varchar(max)

    select @idx = 1
        if len(@String)<1 or @String is null  return

    while @idx!= 0
    begin
        set @idx = charindex(@Delimiter,@String)
        if @idx!=0
            set @slice = left(@String,@idx - 1)
        else
            set @slice = @String

        if(len(@slice)>0)
            insert into @temptable(Items) values(@slice)

        set @String = right(@String,len(@String) - @idx)
        if len(@String) = 0 break
    end
return
end

此函数的工作方式类似于字符串的拆分函数.
有关更多信息，请参见存储过程与函数之间的差异 [ ^ ]

this function work like split functon of string.
for more look at Differences between Stored Procedures and Functions[^]

我认为您需要了解一些基础知识
//存储过程
http://msdn.microsoft.com/en-us/library/ms190782.aspx

//功能
http://msdn.microsoft.com/en-us/library/ms186755.aspx [ ^ ]
http://msdn.microsoft.com/en-us/library/ms174318.aspx [ ^ ]

I think you need to know some basics
//Store procedure
http://msdn.microsoft.com/en-us/library/ms190782.aspx

//Functions
http://msdn.microsoft.com/en-us/library/ms186755.aspx[^]
http://msdn.microsoft.com/en-us/library/ms174318.aspx[^]

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