sql server平台用存储过程进行分页的两种方法

王朝厨房·作者佚名  2007-01-04
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摘要:sql server平台用存储过程进行分页的两种方法

最近因为稍微有点空闲时间,所以想了下在sql server平台用存储过程的分页方式,现在列示在下面。

实际测试时,在15000条数据情况下两者性能大体相当,在20000-30000条数据的情况下前者明显比后者性能更佳。更大数据量没有进行测试了。

注意,数据表里面是否有 键和索引 对性能的影响相当大

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第一种:

/*第一个参数是每页条数,第二个参数是目标页码*/

CREATE proc sp_fixpage @pagesize int,@destpage int as

set nocount on

declare @id int

declare @startid int

select @startid = (@destpage - 1)*@pagesize

set rowcount @startid

select @id = id from t_member

set rowcount @pagesize

set nocount off

select * from t_member where id > @id order by id

GO

第二种:

CREATE PROCEDURE sp_fixpage1 @pagesize int ,@destpage int

as

set nocount on

CREATE TABLE #myTable(

[ID] [int] NOT NULL ,

[UserName] [varchar] (50) COLLATE Chinese_PRC_CI_AS NOT NULL ,

[Name] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,

[Origin] [int] NULL ,

[LatencyBuyDegree] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,

[UserType] [varchar] (2) COLLATE Chinese_PRC_CI_AS NULL ,

[Email] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,

[UserLev] [int] NULL ,

[RegTime] [datetime] NULL ,

[RegMode] [bit] NULL ,

[PaperNum] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,

[UserClass] [bit] NULL ,

[password] [binary] (64) NULL ,

[Tel] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,

[drass] [varchar] (150) COLLATE Chinese_PRC_CI_AS NULL ,

[Zip] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,

[PaperNumlb] [int] NULL ,

[OpUser] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,

[Province] [varchar] (50) COLLATE Chinese_PRC_CI_AS NULL ,

[BirthDate] [datetime] NULL

) ON [PRIMARY]

declare @tempPos int

declare @absPos int

declare @nowID int

set @tempPos = 1

set @absPos = 1

if @destpage > 1

set @absPos = (@pagesize*(@destpage- 1) + 1)

declare myCursor scroll cursor for

select [ID] from t_member order by id

open myCursor

fetch absolute @absPos from myCursor into @nowID

while (@@fetch_status = 0) and (@tempPos <= @pagesize)

begin

set @tempPos = @tempPos + 1

insert into #myTable select * from t_member where [ID] = @nowID

fetch next from myCursor into @nowID

end

close myCursor

deallocate myCursor

set nocount off

select * from #myTable

drop table #myTable

GO

 
 
 
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