浅谈基于SQLServer分页存储过程五种方法及性能比较

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。

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() 
declare @strSql nvarchar() 
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。关于SQL Server分页存储过程五种方法及性能比较的全部内容就到此结束了，希望对大家有所帮助。

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