CENTRAL SCHOOL LIBRARY Observe the ER Diagram for the CENTRAL SCHOOL LIBRARY

question 21

Multiple Choice

CENTRAL SCHOOL LIBRARY
Observe the ER diagram for the CENTRAL SCHOOL LIBRARY

-How many optional columns will the relational schema mapped from the Central School Library ER diagram have?

• A)0
• B)1
• C)2

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Definitions:

Table Create

The process of defining and creating a new table in a database, specifying its structure, fields, and data types.

Compact And Repair

Compact And Repair is a database maintenance operation that reduces file size and repairs errors in the database, improving performance and reliability.

Database Tools

Software or features that help users create, manage, and manipulate databases, facilitating data organization and retrieval.

Demographic Information

Data that describes the characteristics of a population or a particular segment, such as age, gender, income, and education.