Boyce-Codd Normal Form (BCNF) is an extension of Third Normal Form on strict terms. BCNF states that − For any non-trivial functional dependency, X → A, X must be a super-key. In the above image, Stu_ID is the super-key in the relation Student_Detail and Zip is the super-key...
But out of the 3 different students in our table, 2 have opted for more than 1 subject. And we have stored the subject names in a single column. But as per the 1st Normal form each column must contain atomic value. How to solve this Problem?
For a table to be in the Second Normal form, it should be in the First Normal form and it should not have Partial Dependency. Partial Dependency exists, when for a composite primary key, any attribute in the table depends only on a part of the primary key and not on the complete prima...