维度表需要作为主键数据的通用键；这将作为事实表的外键。
A dimension table needs a generalized key as the primary key data; this becomes the foreign key in the fact table.
Informix的序号很适合作为通用键，并且我非常热衷于在每个维度表中使用序号列。
Informix serial Numbers work really well as generalized keys, and I am a fan of using a serial number column on all dimension tables.
为基于主键、外键和索引的通用查询提供访问
Provides access to common queries based on primary keys, foreign keys, and indexes.
托管角色采用通用业务对象，指向将在运行时保存关系实例ID的键属性。
The managed role is typed with the generic business object and points to the key attribute that will hold the relationship instance id at run time.
首先由键图模型导出系统的状态方程，再采用各种通用的仿真语言，但过程繁琐复杂。
Usually, it is necessary to derive the system state equations from the bond graph and the analyst must use a general simulation language, which is a complicated process.
这个类别除了提供资源元件中简单索引键侦测的通用基底类别外，不提供任何其他功能。
This class provides no functionality except to supply a common base class for simple key detection in resource components.
这个类别除了提供资源元件中简单索引键侦测的通用基底类别外，不提供任何其他功能。
This class provides no functionality except to supply a common base class for simple key detection in resource components.
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