oracle分页查询

oracle分页有通用写法,假设一页5行
select * from （
    select t.*,rownum from (
        select * from table1 where condition order by column) t )
    where rownum>(pangeNow-1)*5 and rownum<=(pageNow)*5

如果基础查询不需要排序，可以省掉一层嵌套
select * from （
    select t.*,rownum from table1 t where condition )
    where rownum>(pangeNow-1)*5 and rownum<=(pageNow)*5

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select * from (select t.*,rownum rn from (select * from s_user order by id) t where rownum<=100) where rn>=1