腾冲景点门票价格:请教数据库语句 group by DISTINCT

请教数据库语句 group by DISTINCT SQL问题!GROUP BY语句~ 怎么理解group by 语句 SQL语句 group by 后的排序问题 sql--group by 问题 请问这段sql语句什么意思？select newnum=max(AAA),c0102 into #temp1 from A001a003 group by c0102 求救,分组查询group by excel中如何操作group by？ sql中order by和group by的区别 group by为什么不能和order by一起用