\begin{frame} \frametitle{Multivalued Dependencies} % 4NF intuitively: do not store unrelated information in the same relation. \begin{exampleblock}{} The following table shows for each employee: \begin{itemize} \item knowledge of programming languages \item knowledge of programming DBMSs \end{itemize} \begin{center} \tableKnowledge \end{center} \pause There are no non-trivial functional dependencies. \begin{itemize} \item The table is in \emph{BCNF}. \end{itemize} \pause Nevertheless, there is \emph{redundant information}. \end{exampleblock} \end{frame}