标签:mit from tab 基本 分页 数据 order where ora
一,MySQL
基本句式
select * from tableName where ... order by ... limit [n,]m;
就是查询从第n条数据后的m 条数据。n可由可无。
子查询的分页方式,提高查询速度
select * from tableName where id>=
(select id from tableName where ...orderby... limit n,1) limit m;
二, oracle
基本句式
select * from tablename from(select ROWNUM r,t1.* from tablename t1 where
ROWNUM<=n+m) t2 where t2.r>n;
select * from (select a.*,ROWNUM r from(select * from tablename)a where ROWNUM<=n+m)
where a.r>n
标签:mit from tab 基本 分页 数据 order where ora
原文地址:http://www.cnblogs.com/m01qiuping/p/6410354.html