12 Questions
What do business rules provide in a data design?
Understanding of the data
Which of the following is an example of a business rule?
Each student must provide a unique identifier
What is the purpose of an entity in an RDBMS terminology?
To represent a collection of data
Which of the following is considered an entity in a database?
A student's address
In a student table business rule, what is required for each student?
Allocating a unique identifier
Why is it important for each student to have a valid email address in a database?
To ensure proper communication
In a hospital database, which of the following is an example of a multivalued attribute?
Patient's emergency contact info
Which type of attribute is the date of birth of a patient in the hospital database?
Stored
What is the key attribute in a database table represented by a watch being purchased online?
Product ID
Which attribute type cannot be broken down further and is considered a single piece of data?
Simple
In a database, which would NOT typically be an identifier (key) attribute?
Email Address
What distinguishes a relation from a table in a database context?
Every table is a relation, but not every relation is a table.
Learn about the importance of business rules in data design, which provide a formal way to understand data through integrity constraints. Explore what information is needed for business rules, including policies, procedures, events, functions, constraints, and other business objects.
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