Talk:Transitive dependency

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I'm not familiar with math notation, but find this article a valuable addition to my computer science knowledge. It would be useful for the article to preface the statement "A -> B" with how to read it. Is is "A depends on B", "B depends on A", or something else?

In addition, it would be useful to mention that {Book} represents not just the title, but the entire book entity, including its contents. Because the table shows only the book title, I was confused by how you could determine an author given a book title, as some different books with different authors have the same title. — Preceding unsigned comment added by Doughkramer (talk • contribs) 17:27, 10 August 2012 (UTC)[reply]

Every book says that transitive dependencies of only nonprime attributes matter in 3NF. Nowhere I have seen an example that shows a prime attribute having TD with the primary key in a relation that is in 2NF. Is it even possible? If yes, any example? --13/03/2014 02:26 IST — Preceding unsigned comment added by 202.142.65.42 (talk) 21:07, 12 March 2014 (UTC)[reply]