\begin{frame} \frametitle{Unnecessary Joins} \tableStudentsResults \bigskip \begin{quiz}{\textwidth}{Is there any difference between these two queries?} \small \BUseVerbatim{remove} \end{quiz} %% If a student does not occur in Results it is removed from the %% result in the second query (Maria Brown) %% %% Second query will also not list Students with the same first and last name. \end{frame} \theme{Self Joins}