Multiple choice

Consider the following relational schemes for a library database: Book Title, Author, Catalog_ no, Publisher, Year, Pr ice Collection Title, Author, Catalog_ no within the functional dependencies: I. Title Author $\rightarrow$ Catalog_no II. Catalog_no $\rightarrow$ Title Author Publisher Year III. Publisher Title Year $\rightarrow$ Pr ice

Assume {Author, Title} is the key for both schemes. Which of the following statements is true?

  1. Both Book and Collection are in BCNF

  2. Both Book and Collection are in 3NF only

  3. Book is in 2NF and Collection is in 3NF

  4. Both Book and Collection are in 2NF only
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

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