• Instead, it requires the developer only to denote the attributes to be persisted and to identify the attribute to represent the object's unique identifier (or primary key).

    相反需要程序员属性标记持久性的,识别代表对象唯一标识符(或者键)属性

    youdao

  • An entity's primary key is the attribute or set of attributes that distinguish one instance of the entity from another.

    实体使实体实例区别其他实例的一个一组属性

    youdao

  • 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一个复合

    youdao

  • Entities that share some attributes, including an identifier (primary key), but not others may be modelled as having a common supertype.

    一些实体具有某些共同属性比如标识符(),其他属性不同,这些实体可能具有共同的超类型。

    youdao

  • The table must match the definition of your attributes; for example, the primary database key for the equations table must be the primary key of the Persistent class as well.

    必需属性定义匹配例如等式数据库必须也是 Persistent的主键。

    youdao

  • 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属性比如名称描述描述。

    youdao

  • In this test, we created a single entity named OgisCustomer, which has four member attributes including the primary key (SRCSEQ).

    测试中,我们创建了名为ogiscustomer实体包括(SRCSEQ)在内的4个成员属性

    youdao

  • 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.

    每个相关属性集合创建单独每个表指定一个最多包含来自属性域的

    youdao

  • This paper gives a availability method based on Dependency -matrix that can find all primary attributes and get primary key.

    类问题的子类给出一种通过依赖矩阵求出全部属性方法进而得出主关键字。

    youdao

  • 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).

    如果一些属性上关系,这些属性转移一个单独表中所有属性必须直接依赖于主键(查看更多)。

    youdao

  • 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).

    如果一些属性上关系,这些属性转移一个单独表中所有属性必须直接依赖于主键(查看更多)。

    youdao

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定