primary key attributes的意思|示意
主码属性；主键属性
primary key attributes的网络常见释义
主码属性 ... print 列印 打印 primary key attributes 主码属性 overload 多载化、多载化、重载 重载 ...
primary key attributes相关短语
1、 primary y key attributes 主码属性
primary key attributes相关例句
Updates the attributes of a specific book that is identified by its primary key.
更新一本特定的、由其主键标识的书籍的属性。
An entity's primary key is the attribute or set of attributes that distinguish one instance of the entity from another.
实体的主键是使该实体的一个实例区别于其他实例的一个或一组属性。
Products often share only a few attributes, such as a primary key, a name, a short description, and a long description.
产品常常只有很少几个共有的属性，比如主键、名称、短描述和长描述。
Multiple attributes in the entity may be combined to form a composite primary key.
实体中的多个属性可以组合成一个复合的主键。
Make a separate table for each set of related attributes, and give each table a primary key. Each field contains at most one value from its attribute domain.
为每个相关属性的集合创建一个单独的表，并为每个表指定一个主键。每列最多包含一个来自其属性域的值。
If attributes do not contribute to a description of the key, then remove them to a separate table. All attributes must be directly dependent on the primary key. (Read more here).
如果一些属性跟主键扯不上关系，则将这些属性转移到一个单独的表中。所有属性必须直接依赖于主键(查看更多)。