Match the Database Integrity Rule to the Appropriate Definition

question 4

Multiple Choice

Match the database integrity rule to the appropriate definition.
-Rule 1: Entity Integrity

• A)Each record in the database must have a unique identifier called a primary key.
• B)Data referenced and stored in related tables must be consistent across the database.
• C)The field values must be from a predefined domain.
• D)The primary key value cannot be null (empty).

---

Definitions:

Longitudinal Study

A research design where the same subjects are observed or tested repeatedly over a period of time, allowing for the examination of changes and continuities.

Distinction

A difference or contrast between similar things or people.

Socioemotional Development

The process of developing the capacity to experience, manage emotions, and establish meaningful relationships with others.

Psychosocial Stages

A theory by Erik Erikson that proposes eight stages of human development, each characterized by a different psychological challenge or crisis that needs resolution.