Primary Key Attribute的意思|示意
主键属性
Primary Key Attribute的网络常见释义
关键属性 能唯一标识一个元组的属性称乀为关键属性(Primary Key Attribute)戒简称为主关键字(Primary Key)。主关键字有时是由夗个属性组成的,此时的主关键字叨做组合关键字(Conˉcatenated primary Key)。
Primary Key Attribute相关短语
1、 attribute of primary key 主键属性
Primary Key Attribute相关例句
We will include this Key as an attribute of AcmeMembership, mark it as a Primary Key, and specify the strategy the Google App Engine runtime will use to populate it automatically with unique values.
我们将会将该Key作为AcmeMembership的属性添加，并将其标记为一个主键，并指定Google App Engine运行时的策略，它将会自动填充上唯一的值。
All Hibernator objects require a primary key. This is specified through the "id" attribute.
所有Hibernator对象都需要主键，通过“id”属性指定。
For an entity class, at least one member must have this attribute and should be mapped to the primary key or a unique key in the corresponding table or view.
对于实体类，必须至少有一个成员具有此特性，并应映射到相应表或视图中的主键或唯一键。
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。
We use place name as the primary key word to build the relationships between the spatial database and attribute database or each attribute tables.
并将各地地名作为主关键字，以实现空间库与属性库以及各属性库之间的关联。
In normalization theory of relation database, finding candidate key and primary attribute is always a difficult problem.
在关系数据库规范化理论中，求解后选关键字和主属性一直是一个棘手的问题。