The Database Requirement That Foreign Keys Must Be Null or Have

question 62

Multiple Choice

The database requirement that foreign keys must be null or have a value corresponding to the value of a primary key in another table is formally called the

• A)entity integrity rule.
• B)referential integrity rule.
• C)unique primary key rule.
• D)foreign key rule.

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Definitions:

Acting Out Behaviors

Exhibiting negative or disruptive behaviors as a response to emotional distress or unresolved issues.

Birth Control

Various methods used to prevent pregnancy, including hormonal contraceptives, barrier methods, and surgical procedures.

Abdominal Pain

Discomfort or pain felt anywhere within the abdomen area.

Current Relationship

The ongoing interactions and bond between individuals in a personal, social, or professional context.