What Is a Primary Key

question 228

Multiple Choice

What is a primary key?

• A)A field (or group of fields) that uniquely identifies a given entity in a table.
• B)A primary key of one table that appears as an attribute in another table and acts to provide a logical relationship among the two tables.
• C)Characteristics or properties of an entity.
• D)A field (or group of fields) that uniquely identifies a given attribute in a table.

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Definitions:

Obscuring Meaning

The act of making a message or information less clear and harder to understand, often intentionally.

Informal Language

Informal language is a casual form of speech or writing, characterized by colloquial expressions and a familiar tone, used among friends or in relaxed settings.

Adjectives

Words used to describe or modify nouns, giving more information about their characteristics.

Adverbs

Words that modify verbs, adjectives, or other adverbs, often to indicate manner, degree, or frequency.