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