ORACLE中用rownum分页并排序的SQL语句

ORACLE中用rownum分页并排序的SQL语句

以前分页习惯用这样的SQL语句:

select * from

(select t.*,rownum row_num from mytable t order by t.id) b

where b.row_num between 1 and 10

结果发现由于该语句会先生成rownum 后执行order by 子句,因而排序结果根本不对,后来在GOOGLE上搜到一篇文章,原来多套一层select 就能很好的解决该问题,特此记录,语句如下:

select * from

(select a.*,rownum row_num from

(select * from mytable t order by t.id desc) a

) b where b.row_num between 1 and 10

 

写道

SELECT * FROM
(
SELECT A.*, rownum r
FROM
(
SELECT *
FROM Articles
ORDER BY PubTime DESC
) A
WHERE rownum <= PageUpperBound
) B
WHERE r > PageLowerBound;