Podcast
Questions and Answers
What do business rules provide in a data design?
What do business rules provide in a data design?
- Query optimization strategies
- Data storage techniques
- Database normalization principles
- Understanding of the data (correct)
Which of the following is an example of a business rule?
Which of the following is an example of a business rule?
- Each student must provide a unique identifier (correct)
- Each student must provide their blood type
- Each student must disclose their favorite food
- Each student must submit their favorite color
What is the purpose of an entity in an RDBMS terminology?
What is the purpose of an entity in an RDBMS terminology?
- To represent a collection of data (correct)
- To write complex SQL queries
- To optimize database performance
- To design user interfaces
Which of the following is considered an entity in a database?
Which of the following is considered an entity in a database?
In a student table business rule, what is required for each student?
In a student table business rule, what is required for each student?
Why is it important for each student to have a valid email address in a database?
Why is it important for each student to have a valid email address in a database?
In a hospital database, which of the following is an example of a multivalued attribute?
In a hospital database, which of the following is an example of a multivalued attribute?
Which type of attribute is the date of birth of a patient in the hospital database?
Which type of attribute is the date of birth of a patient in the hospital database?
What is the key attribute in a database table represented by a watch being purchased online?
What is the key attribute in a database table represented by a watch being purchased online?
Which attribute type cannot be broken down further and is considered a single piece of data?
Which attribute type cannot be broken down further and is considered a single piece of data?
In a database, which would NOT typically be an identifier (key) attribute?
In a database, which would NOT typically be an identifier (key) attribute?
What distinguishes a relation from a table in a database context?
What distinguishes a relation from a table in a database context?
