分頁-儲存過程5種寫法 sqlserver分頁
阿新 • • 發佈:2019-01-01
在SQL Server資料庫操作中,我們常常會用到儲存過程對實現對查詢的資料的分頁處理,以方便瀏覽者的瀏覽。本文我們總結了五種SQL Server分頁儲存過程的方法,並對其效能進行了比較,接下來就讓我們來一起了解一下這一過程。
建立資料庫data_Test :
- create database data_Test
- GO
- use data_Test
- GO
- create table tb_TestTable --建立表
- (
- id int identity(1,1) primary key,
- userName nvarchar(20) not null,
- userPWD nvarchar(20) not null,
- userEmail nvarchar(40) null
- )
- GO
插入資料:
- set identity_insert tb_TestTable on
- declare @count int
- [email protected]count=1
- while @count<=2000000
- begin
- insert into tb_TestTable(id,userName,userPWD,userEmail) values(@count,'admin','admin888','[email protected]
- set @count[email protected]+1
- end
- set identity_insert tb_TestTable off
1、利用select top 和select not in進行分頁
具體程式碼如下:
- 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後不支技直接接引數,所以寫成了字串@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和中間變數
- create procedure proc_paged_with_Midvar --利用ID>最大ID值和中間變數
- (
- @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[email protected]+1,@ID=case when @count<[email protected]*@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()給資料行加上索引
- 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[email protected]+' select * From Table_CTE where page_num='+str(@pageIndex)
- end
- begin
- execute sp_executesql @strSql
- select datediff(ms,@datediff,GetDate())
- set nocount off;
- end