淺談基于SQL Server分頁(yè)存儲(chǔ)過(guò)程五種方法及性能比較

更新時(shí)間：2015年09月24日 15:38:22 投稿：mrr

本文由腳本之家小編給大家分享了五種sqlserver分頁(yè)存儲(chǔ)過(guò)程及性能比較，接下來(lái)我們跟著小編一起了解了解吧

在SQL Server數(shù)據(jù)庫(kù)操作中，我們常常會(huì)用到存儲(chǔ)過(guò)程對(duì)實(shí)現(xiàn)對(duì)查詢的數(shù)據(jù)的分頁(yè)處理，以方便瀏覽者的瀏覽。

創(chuàng)建數(shù)據(jù)庫(kù)data_Test ：

create database data_Test  
GO  
use data_Test  
GO  
create table tb_TestTable  --創(chuàng)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(shù)據(jù)：

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進(jìn)行分頁(yè)

具體代碼如下：

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

5、利用臨時(shí)表及Row_number

create procedure proc_CTE --利用臨時(shí)表及Row_number  
(  
@pageIndex int, --頁(yè)索引  
@pageSize int  --頁(yè)記錄數(shù)  
)  
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

以上的五種方法中，網(wǎng)上說(shuō)第三種利用select top和中間變量的方法是效率最高的。關(guān)于SQL Server分頁(yè)存儲(chǔ)過(guò)程五種方法及性能比較的全部?jī)?nèi)容就到此結(jié)束了，希望對(duì)大家有所幫助。

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