【单选题】【消耗次数：1】
所述功能中，不属于SQL语言功能的是（ ）。
①
数据表的定义功能
②
数据查询功能
③
数据增、删、改功能
④
提供方便的用户操作界面功能
参考答案：
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相关题目
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数据库管理系统能实现对数据库中数据的查询．插入．修改和删除等操作，这种功能称为( )。
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A．数据定义功能
②
B．数据管理功能
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C．数据操纵功能
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数据定义、关系规范化、数据控制
④
数据定义、关系规范化、数据操纵
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