五种SQL Server分页存储过程的方法及性能比较

在SQL Server数据库操作中，我们常常会用到存储过程对实现对查询的数据的分页处理，以方便浏览者的浏览。本文我们总结了五种SQL Server分页存储过程的方法，并对其性能进行了比较，接下来就让我们来一起了解一下这一过程。

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

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

以上的五种方法中，网上说第三种利用select top和中间变量的方法是效率最高的。

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