1. 按照tname排序,查询前10条数据

  



select id,tname from (select id,name from student order by tname) where rownum<=10 ;


 

2. 查询第100-150条记录

  

  1. 最佳选择:利用分析函数

       row_number() over ( partition by col1 order by col2 )                               

  比如想取出100-150条记录,按照tname排序

  



select tname,tabtype from (                               

select tname,tabtype,row_number() over ( order by tname ) rn from tab

) where rn between 100 and 150;


 

  2. 使用rownum 虚列



select tname,tabtype from (                    

select tname,tabtype,rownum rn from tab where rownum <= 150

) where rn >= 100;


 


钟声敲响了日落,柏油路跃过山坡,一直通向北方的是我们想象,长大后也未曾经过~