SELECT SalesRepID, CustomerID, COUNT(*) AS WorkTimes FROM WorkTable GROUP BY SalesRepID, CustomerID ORDER BY WorkTimes DESC;
注:WorkTable为包含工作记录的表名。
上一篇:按小时子集数据
下一篇:按销售的产品实例数量降序分组,然后按产品名称的字符串长度排序的SQL查询。