Top "Database-theory" questions

candidate keys from functional dependencies

Given the Relation R with attributes ABCDE. You are given the following dependencies: A -> B, BC -> …

functional-dependencies database-theory
Consider the following set F of functional dependencies on the relation schema r(A,B,C,D,E,F):

I have tried to reach out to my instructor with no luck and I really want to understand this process, …

functional-dependencies database-theory
What does the symbol "⊇" mean?

In the attached picture there's a symbol I don't understand. To understand additive functional dependency I need to know what …

normalization database-theory functional-dependencies