SQL Server paging stored procedure notation and performance comparison

Source: Internet
Author: User
Tags getdate

------创建数据库data_Test -----create database data_TestGOuse data_TestGOcreate 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 ondeclare @count intset @count=1while @count<=2000000begininsert into tb_TestTable(id,userName,userPWD,userEmail) values(@count,‘admin‘,‘admin888‘,‘[email protected]‘)set @[email protected]+1endset 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)asbeginset 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@sqlselect 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)asbeginset nocount on;declare @timediff datetimedeclare @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)asdeclare @count intdeclare @ID intdeclare @timediff datetimedeclare @sql nvarchar(500)beginset nocount on;select @count=0,@ID=0,@timediff=getdate()select @[email protected]+1,@ID=case when @count<[email protected]*@pageIndex then ID else @ID end from tb_testTable order by id< /c11> 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)asdeclare @timediff datetimebeginset nocount on;select @timediff=getdate()select&NBSP; * &NBSP; from &NBSP; ( Select &NBSP; *,row_number () over (order &NBSP; by &NBSP; ID ASC &NBSP; as   Idrank &NBSP; from &NBSP; tb_ testtable) &NBSP; as   idwithrownumber &NBSP; 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_numbercreate procedure proc_CTE --利用临时表及Row_number(@pageIndex int, --页索引@pageSize int --页记录数)asset nocount on;declare @ctestr nvarchar(400)declare @strSql nvarchar(400)declare @datediff datetimebeginselect @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)‘;< /c0>set @[email protected]+‘ select * From Table_CTE where page_num=‘+str(@pageIndex)endbeginexecute sp_executesql @strSqlselect datediff(ms,@datediff,GetDate())set nocount off;end

  

Stored procedures of 5 kinds of page notation, the following code is from the forgotten when from the other people that CTRL + C, so just as a collection, I hope the author see do not spray me.

SQL Server paging stored procedure notation and performance comparison

Related Article

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.