查询及去重复

select t.*, t.rowid from t_uec_monthbigprizeinfo t Where t.prizetime=to_date('2011-01-01','yyyy-mm-dd') Order By t.prizetype

 

查找id为最大的重复记录。

Select t1.*,t1.Rowid From t_uec_monthbigprizeinfo t1 Where t1.rowid In

(
select  max(Rowid) from t_uec_monthbigprizeinfo t
Where t.prizetime=to_date('2011-01-01','yyyy-mm-dd')
 Group By t.prizenumber  having count(*)>1

)
And t1.prizetime=to_date('2011-01-01','yyyy-mm-dd') Order By t1.prizetype