The Entity Integrity Rule States That

question 75

Multiple Choice

The entity integrity rule states that:

• A) no primary key attribute can be null.
• B) referential integrity must be maintained across all entities.
• C) each entity must have a primary key.
• D) a primary key must have only one attribute.

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Definitions:

Repress

The psychological act of unconsciously excluding unwanted thoughts, memories, or desires from conscious awareness.

Vent

To release or express strong emotions, often through speaking or activity.

Relax

The state of being free from tension or anxiety.

Disgust

A strong negative feeling of repugnance and revulsion.