五種SQL Server分頁存儲過程的方法及性能比較

在SQL Server數據庫操作中，我們常常會用到存儲過程對實現對查詢的數據的分頁處理，以方便浏覽者的浏覽。本文我們總結了五種SQL Server分頁存儲過程的方法，並對其性能進行了比較，接下來就讓我們來一起了解一下這一過程。

創建數據庫data_Test ：

create database data_Test  
 
GO  
 
use data_Test  
 
GO  
 
create table tb_TestTable  --創建表  
 
(  
 
id int identity(1,1) primary key,  
 
userName nvarchar(20) not null,  
 
userPWD nvarchar(20) not null,  
 
userEmail nvarchar(40) null  
 
)  
 
GO 

插入數據：

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','[email protected]')  
 
set @count=@count+1  
 
end  
 
set identity_insert tb_TestTable off 

1、利用select top 和select not in進行分頁

具體代碼如下：

create procedure proc_paged_with_notin --利用select top and select not in  
 
(  
 
@pageIndex int, --頁索引  
 
@pageSize int  --每頁記錄數  
 
)  
 
as  
 
begin  
 
set nocount on;  
 
declare @timediff datetime --耗時  
 
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後不支技直接接參數，所以寫成了字符串@sql  
 
select datediff(ms,@timediff,GetDate()) as 耗時  
 
set nocount off;  
 
end 

2、利用select top 和 select max(列鍵)

create procedure proc_paged_with_selectMax --利用select top and select max(列)  
 
(  
 
@pageIndex int, --頁索引  
 
@pageSize int  --頁記錄數  
 
)  
 
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 耗時  
 
set nocount off;  
 
end 

3、利用select top和中間變量

create procedure proc_paged_with_Midvar --利用ID>最大ID值和中間變量  
 
(  
 
@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 耗時  
 
set nocount off;  
 
end 

4、利用Row_number() 此方法為SQL server 2005中新的方法,利用Row_number()給數據行加上索引

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 耗時  
 
set nocount off;  
 
end 

5、利用臨時表及Row_number

create procedure proc_CTE --利用臨時表及Row_number  
 
(  
 
@pageIndex int, --頁索引  
 
@pageSize int  --頁記錄數  
 
)  
 
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 

以上的五種方法中，網上說第三種利用select top和中間變量的方法是效率最高的。

關於SQL Server數據庫分頁的存儲過程的五種方法及性能比較的知識就介紹到這裡了，希望對大家的學習有所幫助。