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Oracle、MySQL和SQL Serve分页查询的语句区别

时间:2016-05-29 04:39来源:linux.it.net.cn 作者:IT

★先来定义分页语句将要用到的几个参数:

int currentPage ; //当前页
int pageRecord ; //每页显示记录数
以之前的ADDRESSBOOK数据表为例(每页显示10条记录):

一、SqlServe下载 分页语句

String sql = "select top "+pageRecord +" * from addressbook where id not in (select top "+(currentPage-1)*pageRecord +" id from t_user)";  
// (currentPage-1)*pageRecord : 是指从第几个记录开始 

第二页SQL演示:

select top 20 * from addressbook where id not in (select top 10 id from addressbook)

二、MySQL数据库分页语句

String sql = "select * from addressbook where limit "+(currentPage-1)*pageRecord +","+pageRecord +"";  
          
//select * from 表名 【条件】limit M,N;    
//M为从第几个记录开始,比如每页显示3条记录,第二页就必须从第4条记录开始  
//N每页读几个数据 

第二页SQL演示:

select * from addressbook where limit 10,10

三、Oracle数据库分页语句

String sqls = "select * from ( select rownum rn,t.* from addressbook t where rownum <= "+currentPage*pageRecord+" ) where rownum > "+(currentPage -1)*pageRecord;  
          
第二页SQL演示:

select * from ( select rownum rn,t.* from addressbook where rownum<= 20 ) where rownum > 10



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