SQL Server分页的存储过程写法以及性能比较

       ------创建数据库data_Test -----

create database data_Test 

 GO 

use data_Test 

GO 

create table tb_TestTable   --创建表 

( 

    id int identity(1,1) primary key, 

    userName nvarchar(20) not null, 

    userPWD nvarchar(20) not null, 

    userEmail nvarchar(40) null 

) 

GO



------插入数据------ 

 set identity_insert tb_TestTable on 

 declare @count int 

 set @count=1 

 while @count<=2000000 

 begin 

    insert into tb_TestTable(id,userName,userPWD,userEmail) values(@count,'admin','admin888','lli0077@yahoo.com.cn') 

     set @count=@count+1 

 end 

set identity_insert tb_TestTable off



---1、利用select top 和select not in进行分页，具体代码如下

create procedure proc_paged_with_notin  --利用select top and select not in 

 ( 

     @pageIndex int,  --页索引 

     @pageSize int    --每页记录数 

 ) 

 as 

 begin 

     set nocount on; 

     declare @timediff datetime --耗时 

    declare @sql nvarchar(500) 

    select @timediff=Getdate() 

    set @sql='select top '+str(@pageSize)+' * from tb_TestTable where(ID not in(select top '+str(@pageSize*@pageIndex)+' id from tb_TestTable order by ID ASC)) order by ID' 

    execute(@sql)  --因select top后不支技直接接参数，所以写成了字符串@sql 

    select datediff(ms,@timediff,GetDate()) as 耗时 

    set nocount off; 

end





---2、利用select top 和 select max(列键)---



 create procedure proc_paged_with_selectMax  --利用select top and select max(列) 

 ( 

     @pageIndex int,  --页索引 

     @pageSize int    --页记录数 

 ) 

 as 

 begin 

 set nocount on; 

     declare @timediff datetime 

    declare @sql nvarchar(500) 

    select @timediff=Getdate() 

    set @sql='select top '+str(@pageSize)+' * From tb_TestTable where(ID>(select max(id) From (select top '+str(@pageSize*@pageIndex)+' id From tb_TestTable order by ID) as TempTable)) order by ID' 

    execute(@sql) 

    select datediff(ms,@timediff,GetDate()) as 耗时 

set nocount off; 

end

 



---3、利用select top和中间变量--此方法因网上有人说效果最佳---



 create procedure proc_paged_with_Midvar  --利用ID>最大ID值和中间变量 

 ( 

     @pageIndex int, 

     @pageSize int 

 ) 

 as 

     declare @count int 

     declare @ID int 

     declare @timediff datetime 

    declare @sql nvarchar(500) 

begin 

set nocount on; 

    select @count=0,@ID=0,@timediff=getdate() 

    select @count=@count+1,@ID=case when @count<=@pageSize*@pageIndex then ID else @ID end from tb_testTable order by id 

    set @sql='select top '+str(@pageSize)+' * from tb_testTable where ID>'+str(@ID) 

    execute(@sql) 

    select datediff(ms,@timediff,getdate()) as 耗时 

set nocount off; 

end 



---4、利用Row_number() 此方法为SQL server 2005中新的方法,利用Row_number()给数据行加上索引



 create procedure proc_paged_with_Rownumber  --利用SQL 2005中的Row_number() 

 ( 

     @pageIndex int, 

     @pageSize int 

 ) 

 as 

     declare @timediff datetime 

 begin 

 set nocount on; 

    select @timediff=getdate() 

    select * from (select *,Row_number() over(order by ID asc) as IDRank from tb_testTable) as IDWithRowNumber where IDRank>@pageSize*@pageIndex and IDRank<@pageSize*(@pageIndex+1) 

    select datediff(ms,@timediff,getdate()) as 耗时 

set nocount off; 

end



---5、利用临时表及Row_number

 create procedure proc_CTE  --利用临时表及Row_number 

 ( 

     @pageIndex int,  --页索引 

     @pageSize int    --页记录数 

 ) 

 as 

     set nocount on; 

     declare @ctestr nvarchar(400) 

     declare @strSql nvarchar(400) 

    declare @datediff datetime 

begin 

    select @datediff=GetDate() 

    set @ctestr='with Table_CTE as 

                (select ceiling((Row_number() over(order by ID ASC))/'+str(@pageSize)+') as page_num,* from tb_TestTable)'; 

    set @strSql=@ctestr+' select * From Table_CTE where page_num='+str(@pageIndex) 

end 

    begin 

        execute sp_executesql @strSql 

        select datediff(ms,@datediff,GetDate()) 

    set nocount off; 

    end