armstrong-axioms

Let $P, Q, R$ and $S$ be the attributes of a relation in a relational schema. Let $X \rightarrow Y$ indicate functional dependency in the context of a relational database, where $X...

In the context of schema normalization in relational DBMS, consider a set $F$ of functional dependencies. The set of all functional dependencies implied by $F$ is called the closur...

The symbol → indicates functional dependency in the context of a relational database. Which of the following options is/are TRUE?

Suppose the following functional dependencies hold on a relation U with attributes P, Q, R, S, and T : P → QR RS → T Which of the following functional dependencies can be inferred...