oracle分页查询语句 oracle数据库怎么实现分页?
oracle数据库怎么实现分页?
您好:oracle查询分页可分为两种情况,一种使用的是rownum ,另外一种则是使用 row_number() over(order by column_name desc)。1.使用rownum分页查询,可用以下方式:select t2.* from (select t1.*,rownum as rn from table_name t1 where 1=1 and rownum <= page * page_size) t2 where t2.rn > (page - 1) * page_size2.使用 row_number() over() 分页查询select t2.* from (select t1.*,row_number() over(order by column_name desc) as rn from table_name t1 where 1=1 )t2 where t2.rn > (page-1)* page_size and t2.rn <= page * page_size这种方式,也是可以分页的。希望能帮助您!
oracle为什么做个分页关键字?
分页的宗旨是控制查询出来的数据个数,下面这条语句对于Oracle分页已经足够了。
(注:该语句只能用于Oracle)
SELECT * FROM (SELECT temp.*, ROWNUM RN FROM (SELECT * FROM USERS ORDER BY ID DESC) temp) WHERE RN > 0 AND RN <= 10
SELECT *
FROM (SELECT AA.*, ROWNUM RN
FROM (SELECT * FROM USERS ORDER BY ID DESC) AA)
WHERE RN > 0 AND RN <= 10
oracle分页查询语句 oracle怎么实现分页 oracle实现分页
版权声明:本文内容由互联网用户自发贡献,本站不承担相关法律责任.如有侵权/违法内容,本站将立刻删除。