Oracle、MySQL和SqlServe分页查询的语句区别
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★先来定义分页语句将要用到的几个参数:
以之前的ADDRESSBOOK数据表为例(每页显示10条记录):
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一、SqlServe数据库分页语句
class="java" name="code">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)
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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
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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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