关于SQLSERVER的几种种分页方式(转载)
2005-12-18 14:51
423 查看
1.“俄罗斯存储过程”的改良版
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
CREATE procedure pagination1
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(@pagesize int, --页面大小,如每页存储20条记录
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
@pageindex int --当前页码
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
as
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set nocount on
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
begin
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @indextable table(id int identity(1,1),nid int) --定义表变量
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @PageLowerBound int --定义此页的底码
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @PageUpperBound int --定义此页的顶码
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set @PageLowerBound=(@pageindex-1)*@pagesize
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set @PageUpperBound=@PageLowerBound+@pagesize
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set rowcount @PageUpperBound
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
insert into @indextable(nid) select gid from TGongwen where fariqi >dateadd(day,-365,getdate()) order by fariqi desc
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select O.gid,O.mid,O.title,O.fadanwei,O.fariqi from TGongwen O,@indextable t where O.gid=t.nid
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
and t.id>@PageLowerBound and t.id<=@PageUpperBound order by t.id
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
end
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set nocount off
文章中的点评:
以上存储过程运用了SQL SERVER的最新技术――表变量。应该说这个存储过程也是一个非常优秀的分页存储过程。当然,在这个过程中,您也可以把其中的表变量写成临时表:CREATE TABLE #Temp。但很明显,在SQL SERVER中,用临时表是没有用表变量快的。所以笔者刚开始使用这个存储过程时,感觉非常的不错,速度也比原来的ADO的好。但后来,我又发现了比此方法更好的方法。
我的感觉:
没有做过测试,从感觉上讲,效率不是太高。
2. not in 的方法:
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
从publish 表中取出第 n 条到第 m 条的记录:
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
SELECT TOP m-n+1 *
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
FROM publish
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
WHERE (id NOT IN
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(SELECT TOP n-1 id
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
FROM publish))
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
id 为publish 表的关键字
文章中的点评:
我当时看到这篇文章的时候,真的是精神为之一振,觉得思路非常得好。等到后来,我在作办公自动化系统(ASP.NET+ C#+SQL SERVER)的时候,忽然想起了这篇文章,我想如果把这个语句改造一下,这就可能是一个非常好的分页存储过程。于是我就满网上找这篇文章,没想到,文章还没找到,却找到了一篇根据此语句写的一个分页存储过程,这个存储过程也是目前较为流行的一种分页存储过程,我很后悔没有争先把这段文字改造成存储过程:
(更多的内容,请查看原文。)
我的感觉:
使用了 not in 而 not in 是无法使用索引的,所以从效率上讲还是差了一点。
2. max 的方法:
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select top 页大小 *
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
from table1
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
where id>
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(select max (id) from
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(select top ((页码-1)*页大小) id from table1 order by id) as T
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
order by id
文章中的点评:
我们知道,几乎任何字段,我们都可以通过max(字段)或min(字段)来提取某个字段中的最大或最小值,所以如果这个字段不重复,那么就可以利用这些不重复的字段的max或min作为分水岭,使其成为分页算法中分开每页的参照物。在这里,我们可以用操作符“>”或“<”号来完成这个使命,使查询语句符合SARG形式。如:
Select top 10 * from table1 where id>200
我的感觉:
这个就高高效了一点。但是不清楚 max的工作原理,不知道它的性能如何。
下面的才是重点 —— 我研究的算法。如有雷同,属于英雄所见略同!
1、追求高效的翻页算法 —— 定位法。
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @pageSize int --返回一页的记录数
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @CurPage int --页号(第几页)0:第一页;-1最后一页。
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @Count int
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @id int
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set @pageSize=10
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set @CurPage =1
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
--定位
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
if @CurPage = -1
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
begin
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
--最后一页
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set rowcount @pageSize
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select @id=newsID from newsTemp order by newsID
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
end
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
if @CurPage > 0
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
begin
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set @Count = @pageSize * (@CurPage -1) + 1
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set rowcount @Count
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select @id=newsID from newsTemp order by newsID desc
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
end
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
--返回记录
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set rowcount @pageSize
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select * from newsTemp where newsID <=@id order by newsID desc
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set rowcount 0
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
思路:就是上面的算法的延续,就是说呢避免使用 not in 和 max 的方法。
也就是这个思路:Select top 10 * from table1 where id>200
定位 —— 就是说要找到“临界点”,分页的临界点。找到了之后剩下的事情就好办了。
缺点:单字段排序、排序字段的值不能重复(不是绝对不能重复,可以有少量的重复)。
2、通用法 —— 颠颠倒倒法
有的时候“定位法”的缺点是不可以接受的,但是没有关系,可以用这个的。
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select * from table where id in
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select top 10 ID from
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select top 20 ID,addedDate from table
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
order by addedDate desc
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
) as aa order by addedDate
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
order by addedDate desc
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
ID 是主键,addedDate 是排序字段。
缺点:必须有主键。
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
CREATE procedure pagination1
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(@pagesize int, --页面大小,如每页存储20条记录
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
@pageindex int --当前页码
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
as
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set nocount on
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
begin
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @indextable table(id int identity(1,1),nid int) --定义表变量
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @PageLowerBound int --定义此页的底码
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @PageUpperBound int --定义此页的顶码
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set @PageLowerBound=(@pageindex-1)*@pagesize
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set @PageUpperBound=@PageLowerBound+@pagesize
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set rowcount @PageUpperBound
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
insert into @indextable(nid) select gid from TGongwen where fariqi >dateadd(day,-365,getdate()) order by fariqi desc
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select O.gid,O.mid,O.title,O.fadanwei,O.fariqi from TGongwen O,@indextable t where O.gid=t.nid
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
and t.id>@PageLowerBound and t.id<=@PageUpperBound order by t.id
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
end
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set nocount off
文章中的点评:
以上存储过程运用了SQL SERVER的最新技术――表变量。应该说这个存储过程也是一个非常优秀的分页存储过程。当然,在这个过程中,您也可以把其中的表变量写成临时表:CREATE TABLE #Temp。但很明显,在SQL SERVER中,用临时表是没有用表变量快的。所以笔者刚开始使用这个存储过程时,感觉非常的不错,速度也比原来的ADO的好。但后来,我又发现了比此方法更好的方法。
我的感觉:
没有做过测试,从感觉上讲,效率不是太高。
2. not in 的方法:
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
从publish 表中取出第 n 条到第 m 条的记录:
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
SELECT TOP m-n+1 *
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
FROM publish
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
WHERE (id NOT IN
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(SELECT TOP n-1 id
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
FROM publish))
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
id 为publish 表的关键字
文章中的点评:
我当时看到这篇文章的时候,真的是精神为之一振,觉得思路非常得好。等到后来,我在作办公自动化系统(ASP.NET+ C#+SQL SERVER)的时候,忽然想起了这篇文章,我想如果把这个语句改造一下,这就可能是一个非常好的分页存储过程。于是我就满网上找这篇文章,没想到,文章还没找到,却找到了一篇根据此语句写的一个分页存储过程,这个存储过程也是目前较为流行的一种分页存储过程,我很后悔没有争先把这段文字改造成存储过程:
(更多的内容,请查看原文。)
我的感觉:
使用了 not in 而 not in 是无法使用索引的,所以从效率上讲还是差了一点。
2. max 的方法:
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select top 页大小 *
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
from table1
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
where id>
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(select max (id) from
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(select top ((页码-1)*页大小) id from table1 order by id) as T
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
order by id
文章中的点评:
我们知道,几乎任何字段,我们都可以通过max(字段)或min(字段)来提取某个字段中的最大或最小值,所以如果这个字段不重复,那么就可以利用这些不重复的字段的max或min作为分水岭,使其成为分页算法中分开每页的参照物。在这里,我们可以用操作符“>”或“<”号来完成这个使命,使查询语句符合SARG形式。如:
Select top 10 * from table1 where id>200
我的感觉:
这个就高高效了一点。但是不清楚 max的工作原理,不知道它的性能如何。
下面的才是重点 —— 我研究的算法。如有雷同,属于英雄所见略同!
1、追求高效的翻页算法 —— 定位法。
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @pageSize int --返回一页的记录数
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @CurPage int --页号(第几页)0:第一页;-1最后一页。
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @Count int
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
declare @id int
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set @pageSize=10
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set @CurPage =1
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
--定位
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
if @CurPage = -1
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
begin
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
--最后一页
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set rowcount @pageSize
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select @id=newsID from newsTemp order by newsID
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
end
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
if @CurPage > 0
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
begin
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set @Count = @pageSize * (@CurPage -1) + 1
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set rowcount @Count
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select @id=newsID from newsTemp order by newsID desc
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
end
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
--返回记录
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set rowcount @pageSize
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select * from newsTemp where newsID <=@id order by newsID desc
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
set rowcount 0
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
思路:就是上面的算法的延续,就是说呢避免使用 not in 和 max 的方法。
也就是这个思路:Select top 10 * from table1 where id>200
定位 —— 就是说要找到“临界点”,分页的临界点。找到了之后剩下的事情就好办了。
缺点:单字段排序、排序字段的值不能重复(不是绝对不能重复,可以有少量的重复)。
2、通用法 —— 颠颠倒倒法
有的时候“定位法”的缺点是不可以接受的,但是没有关系,可以用这个的。
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select * from table where id in
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select top 10 ID from
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
(
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
select top 20 ID,addedDate from table
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
order by addedDate desc
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
) as aa order by addedDate
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
order by addedDate desc
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
![](http://blog.52forum.com/Images/OutliningIndicators/None.gif)
ID 是主键,addedDate 是排序字段。
缺点:必须有主键。
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