17 Questions
What is a primary key in a relational database?
A field that serves as the unique identifier of a specific tuple in a relation
How does a foreign key relate to a primary key in a relational database?
Foreign key values must match values of the primary key in another table
What is the main purpose of normalization in a relational database?
To minimize errors and redundancy by structuring tables efficiently
In a relational database, what is a domain?
A set of legal values for an attribute
Which of the following best describes an attribute in a relational database model?
It represents the fields within a specific relation or table
What characteristic does data integrity encompass in a relational database?
Completeness, timeliness, accuracy, and authorization
What is the purpose of data validation in a relational database?
Ensuring proper data format and values
What is the role of constraints in a relational database?
Enforcing data integrity rules
Why is it important for every table to have a primary key in a relational database?
To uniquely identify each record in the table
What does the referential integrity constraint ensure in a relational database?
Foreign key values match primary key values
Which relational operation involves combining data from multiple tables based on relationships?
Join
What is the role of Standardized Query Language in data management?
Empowering users beyond programmers to access and manipulate data
What is the benefit of data independence in a relational database model?
Separating logical structure from physical storage
In relational databases, what does ensuring Data Integrity involve?
Guaranteeing accurate and consistent data through well-defined structures and rules
Which of the following is NOT an example of a real-world application of relational databases mentioned in the text?
Handling inventory data for manufacturing companies
What is a key benefit of understanding the core concepts of the relational model?
Empowering efficient and reliable database design
How does the text emphasize the importance of practice in relation to relational databases?
It highlights that practice plays a key role in mastering relational databases
Test your knowledge on relational database models covered in CS107 Module 2.1, including the inventor Dr. E.F. Codd and the representation of databases as collections of relations in tables with rows and columns.
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