Bcnf Normal Form Example - The same data can be stored in a bcnf schema. The nontrivial functional dependencies in the table are: Book title → genre, number of pages. Consider the following table ( st_maj_adv ). Person1(person1 si#, name, address) 9the only fd is si# →name, address A relation is in bcnf if, and only if, every determinant is a candidate key. We can easily see that the only key is the set {author, book title}. Let’s take a look at this table, with some typical data. That is, y is a superkey for r(x). The table is not in bcnf.
Let’s take a look at this table, with some typical data. The table is not in bcnf. The same data can be stored in a bcnf schema. Consider the following table ( st_maj_adv ). A relation is in bcnf if, and only if, every determinant is a candidate key. That is, y is a superkey for r(x). Book title → genre, number of pages. We can easily see that the only key is the set {author, book title}. Person1(person1 si#, name, address) 9the only fd is si# →name, address The nontrivial functional dependencies in the table are: