题目内容:
查询持有外币种类在4种以上人员的姓名,及持有的种类数量,并按种类数量升序排列,数量相同时,则按姓名降序排列,下列语句正确的是( )。A.SELECT 姓名,COUNT(*) AS 外币种类 FROM 持有数; GROUP BY 姓名 HAVING COUNT(*)>=4; ORDER BY 外币种类,姓名 DESC
B.SELECT 姓名,COUNT(*) AS 外币种类 FROM 持有数; GROUP BY 姓名 HAVING COUNT(*)>=4; ORDER BY COUNT(*),姓名 DESC
C.SELECT 姓名,COUNT(*) AS 外币种类 FROM 持有数; GROUP BY 姓名 HAVING COUNT(*)>=4; ORDER BY 外币种类 AND 姓名 DESC
D.SELECT 姓名,COUNT(*) AS 外币种类 FROM 持有数; GROUP BY 姓名 HAVING COUNT(*)>=4; ORDER BY 外币种类+姓名 DESC
参考答案: