题目内容

下列四项中，不正确的说法是（）

A. SQL语言具有数据定义、查询、操纵和控制功能
B. SQL语言称为结构查询语言
C. SQL语言可以自动实现关系数据库的规范化
D. SQL语言是关系数据库的国际标准语言

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