解析数据库分页的两种方法对比(row_number()over()和top的对比)

复制代码 代码如下:

 一页3条数据 取第一页的数据
-- 第一页
       select top 3 * from T_news;
                       取第五页的数据
--第五页
       select  top 3 * from T_News where id not in (select top (3*4) id from T_News)      --关键就在于not  in上 靠他来去掉前几页的数据
                    如果想要自己设定每页几条数据和看第几页的话也行 就多加个存储过程
create proc usp_fenye @geshu int,@yeshu int
as
 begin
   select top (@geshu) * from T_News where id not in (select top (@geshu*(@yeshu-1)) id from T_News)
 end

复制代码 代码如下:

                       一页3条数据 取第一页的数据
   select * from (select *,ROW_NUMBER()over(order by id asc) as number from T_News ) as tb1
     where number between 1 and 3;
第五页的数据
 select * from (select *,ROW_NUMBER()over(order by id asc) as number from T_News ) as tb1
     where number between 3*4+1 and 3*5;
                       自己设定每页几条数据和看第几页
create proc usp_fenye @geshu int,@yeshu int
 as
   begin
     select * from (select *,ROW_NUMBER()over(order by id asc) as number from T_News ) as tb1
     where number between  @geshu*(@yeshu-1)+1 and @geshu*@yeshu;
   end