SQLServer2005通用分页存储过程及多表联接应用

分页存储过程在好多文章中都有介绍过；本篇是不久前写的一个分页存储过程，可应用于SQL Server 2005上面，感兴趣的朋友可以研究下，希望本文对你学习存储过程有所帮助

if object_ID('[proc_SelectForPager]') is not null 
Drop Procedure [proc_SelectForPager] 
Go 
Create Proc proc_SelectForPager 
( 
@Sql varchar(max) , 
@Order varchar(4000) , 
@CurrentPage int , 
@PageSize int, 
@TotalCount int output 
) 
As 
/*Andy 2012-2-28 */ 
Declare @Exec_sql nvarchar(max) 
Set @Exec_sql='Set @TotalCount=(Select Count(1) From ('+@Sql+') As a)' 
Exec sp_executesql @Exec_sql,N'@TotalCount int output',@TotalCount output 
Set @Order=isnull(' Order by '+nullif(@Order,''),' Order By getdate()') 
if @CurrentPage=1 /*经常会调用第1页，这里做特殊处理，少一层子查询*/ 
Set @Exec_sql=' 
;With CTE_Exec As 
( 
'+@Sql+' 
) 
Select Top(@pagesize) *,row_number() Over('+@Order+') As r From CTE_Exec Order By r 
' 
Else 
Set @Exec_sql=' 
;With CTE_Exec As 
( 
Select *,row_number() Over('+@Order+') As r From ('+@Sql+') As a 
) 
Select * From CTE_Exec Where r Between (@CurrentPage-1)*@pagesize+1 And @CurrentPage*@pagesize Order By r 
' 
Exec sp_executesql @Exec_sql,N'@CurrentPage int,@PageSize int',@CurrentPage,@PageSize 
Go 
 
调用方法： 
1.单表： 
 代码如下:

Exec proc_SelectForPager @Sql = 'Select * from contacts a where a.ContactType=1', -- varchar(max) 
@Order = '', -- varchar(4000) 
@CurrentPage = 3, -- int 
@PageSize = 20, -- int 
@TotalCount = 0 -- int 
 
2.多表联接： 
 代码如下:

Exec proc_SelectForPager @Sql = 
'Select a.Staff,a.OU,b.FName+b.FName as Name 
from staffOUHIST a 
inner join Staff b on b.ID=a.Staff and a.ExpiryDate=''30001231'' 
', -- varchar(max) 
@Order = '', -- varchar(4000) 
@CurrentPage = 3, -- int 
@PageSize = 20, -- int 
@TotalCount = 0 -- int 
 
注：在@Sql 中不能使用CTE。