使用oracle数据库查询数据时，每页展示数据有限，大部分情况下需要分页展示。如每页显示10条，一页一页查询出来。下面就来介绍下oracle分页实现
select * from table_Name t order by active_count desc; select * from (select * from table_Name order by active_count desc) where rownum = 1; select * from (select * from table_Name order by active_count desc) where rownum select * from (select t.*, rownum as no from (select * from table_Name order by active_count desc) t) where no between 2 and 3 select * from (select t.*, rownum as no from (select * from table_Name order by active_count desc) t where rownum where no between 2 and 3 select * from (select t.*, rownum as no from (select * from table_Name order by active_count desc) t) where no >=2 解释：
rownum 是在已产生数据的基础上伪生成的编号，所以 使用rownum 必须在已有数据的基础上，因此Oracle分页才加入了多个子查询。
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