The Family Name of a Person is recorded in a system.The column name is Pname.Pname is an example of:一个人的姓被记录在一个系统中，列名是PNAME。Pname是 _______ 的一个例子:()?
（A）Normalized data标准化数据
（B）Data数据
（C）Poor table design桌子设计很差
（D）Megadata大数据
（E）Metadata元数据 答案解析: Pname是数据库表的字段(题目写的是column，而不是attribute)，字段信息都是元数据
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