现有订单表orders,包含用户信息userid, 产品信息 productid, 以下()语句能够返回至少被订购过两回的productid

A、select productid from orders where count(productid)>1 B、select productid from orders where max(productid)>1 C、select productid from orders where having count(productid)>1 group by productid_ D、select productid from orders group by productid having count(productid)>1

时间:2023-06-09 17:17:02

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