MySql(一) 獲取表中最大的數據的信息行

• 獲取表中最大的數據行

select * 
from (
     select objid,count(ObjID) as count from a  group by objid
     ) as a
where count=(
     select max(count) as count 
    from (
        select objid,count(objid) as count from a  
        group by objid 
         ) as c)