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Home ‣ Database ‣ The Relational Model and Normalization Comments
- Question
A candidate key is a determinant that determines all the other columns is a relation.
Options- A. True
- B. False
- Correct Answer
- True
- 1. The functional dependency R ? S means that the value of S can be determined when we are given a value of R.
Options- A. True
- B. False Discuss
- 2. The XML family of standards is very important in database processing today.
Options- A. True
- B. False Discuss
- 3. Structured Query Language (SQL) is an internationally recognized standard language that is understood by all commercial database management system products.
Options- A. True
- B. False Discuss
- 4. The DBMS ranked as being the "hardest to use" in the text is Microsoft's SQL Server.
Options- A. True
- B. False Discuss
- 5. Database applications are seldom intended for use by a single user.
Options- A. True
- B. False Discuss
- 6. In a relation, the rows are sometimes called "fields."
Options- A. True
- B. False Discuss
- 7. A relation is in 5NF when multivalued dependencies are isolated in their own relation.
Options- A. True
- B. False Discuss
- 8. Keys made up of two or more attributes are called composite keys.
Options- A. True
- B. False Discuss
- 9. A functional dependency is a relationship between or among attributes.
Options- A. True
- B. False Discuss
- 10. A primary key is a composite key that was selected to be the main identifier for the relation.
Options- A. True
- B. False Discuss
The Relational Model and Normalization problems
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