Online Uid eLearning Training
From 123-CBT Computer Based Training
Data Modeling - Create Basic Models

...omain is unnecessary.
Identify what a unique identifier (UID) is used for.
Identify when to use attributes as UIDs.
Identify when to use relationships as UIDs.
Identify when a relationship and an attribute are used to form a UID.
Identify the UID for an entity using UIDs inherited from other entities.
Identify when an entity may have multiple UIDs, and the difference between Primary and
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