CompTIA Data+ Practice Questions - CompTIA Data+ Certification (DA0-001) Exam

In database design, what is the difference between a schema and an instance?

A schema is the data; an instance is the database structure A schema is the overall design/structure; an instance is a snapshot of data at a specific time A schema is temporary; an instance is permanent There is no difference; they are interchangeable terms

Correct Answer:

A schema is the overall design/structure; an instance is a snapshot of data at a specific time

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