------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','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后不支技直接接參數，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--此方法因網上有人說效果最佳---
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
存儲過程的5種分頁寫法,下面的代碼是從忘了什么時候從別人那Ctrl+C來的,所以僅僅作為收藏,希望作者看到不要噴我.
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