分頁查詢，oracle分頁查詢

分頁查詢，oracle分頁查詢

• MySql

     select tablename.*  from  tablename limit firstIndex,pageSize;           firstIndex -------->開始索引           pageSize--------->頁大小

• Oracle

                           select a.*,ROWNUM rn from tablename a where ROWNUM<=(firstIndex+pageSize)                           ) where rn>firstIndex;  

     2.         select * from(select * from(select p.*,ROWNUM rn from tablename )p  where p.rownumber>firstIndex)  where rownum>pageSize;