use tempdb go if (object_id ('tb' ) is not null ) drop table tb go create table tb (name varchar (10 ), val int ) go insert into tb select 'aa' , 10 union all select 'aa' , 20 union all select 'aa' , 20 union all select 'aa' , 30 union all select 'bb' , 55 union all select 'bb' , 45 union all select 'bb' , 0
select * , 排名 = rank ()over (partition by name order by val ) , 占比 = cast (val * 1.0 / sum (val )over (partition by name ) as decimal (2 , 2 )) , 距最大 = val - max (val )over (partition by name ) , 距最小 = val - min (val )over (partition by name ) , 距平均 = val - avg (val )over (partition by name ) from tb
