Podcast
Questions and Answers
Which normalization form aims to eliminate transitive dependencies?
Which normalization form aims to eliminate transitive dependencies?
- 1NF
- 2NF
- 3NF (correct)
- 4NF
What is the major goal of relational database design?
What is the major goal of relational database design?
- Introduce update anomalies
- Group columns into tables (correct)
- Maximize data redundancy
- Minimize file storage space
Which type of update anomaly occurs when extra data must be added to the database beyond the desired data?
Which type of update anomaly occurs when extra data must be added to the database beyond the desired data?
- Deletion anomaly
- Modification anomaly
- Insertion anomaly (correct)
- Transitive anomaly
What happens when tables break the rules of 1NF, 2NF, and 3NF?
What happens when tables break the rules of 1NF, 2NF, and 3NF?
Why can tables with redundant data suffer from update anomalies?
Why can tables with redundant data suffer from update anomalies?
What is the primary key for the table that contains details of member of staff and branch?
What is the primary key for the table that contains details of member of staff and branch?
Which type of anomaly occurs when deleting a row inadvertently causes other data to be deleted?
Which type of anomaly occurs when deleting a row inadvertently causes other data to be deleted?
What must be known to insert a course (CourseNo) according to the text?
What must be known to insert a course (CourseNo) according to the text?
Which table contains redundant data causing update anomalies?
Which table contains redundant data causing update anomalies?
What problem occurs when changing multiple rows to modify only a single fact?
What problem occurs when changing multiple rows to modify only a single fact?
What is the major aim of relational database design?
What is the major aim of relational database design?
Which type of update anomaly occurs when extra data beyond the desired data must be added to the database?
Which type of update anomaly occurs when extra data beyond the desired data must be added to the database?
What problem occurs when tables break the rules of 1NF, 2NF, and 3NF?
What problem occurs when tables break the rules of 1NF, 2NF, and 3NF?
Which normalization form aims to eliminate transitive dependencies?
Which normalization form aims to eliminate transitive dependencies?
Why can tables with redundant data suffer from update anomalies?
Why can tables with redundant data suffer from update anomalies?
What is the primary key for the table that contains details of member of staff and branch?
What is the primary key for the table that contains details of member of staff and branch?
What must be known to insert a course (CourseNo) according to the text?
What must be known to insert a course (CourseNo) according to the text?
Which normalization form aims to eliminate transitive dependencies?
Which normalization form aims to eliminate transitive dependencies?
What problem occurs when changing multiple rows to modify only a single fact?
What problem occurs when changing multiple rows to modify only a single fact?
Which type of anomaly occurs when deleting a row inadvertently causes other data to be deleted?
Which type of anomaly occurs when deleting a row inadvertently causes other data to be deleted?
