首页 > 计算机类 > 等级考试 > 计算机二级 > MySQL数据库程序设计 > 订单表 tb_order 包含用户信息 uid 和产品信息 pid 等属性列,以下语句能够返回至少被订购过三次的 pid 是______。

订单表 tb_order 包含用户信息 uid 和产品信息 pid 等属性列,以下语句能够返回至少被订购过三次的 pid 是______。

A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
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正确答案: D
答案分析:
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A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
A.SELECT pid FROM tb_order WHERE count(pid) >3;
B.SELECT pid FROM tb_order WHERE max(pid) > =3 ;
C.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) >3;
D.SELECT pid FROM tb_order GROUP BY pid HAVING COUNT(pid) > =3 ;
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