\begin{frame}<#1>
    \frametitle{SQL Overview}
    
  
    \begin{goal}{Overview}
      \bigskip
      \begin{enumerate}
        \item \alert<1>{\sql{select}-\sql{from}-\sql{where} Blocks, Tuple Variables} \\[2ex]
        \item \alert<2>{Subqueries, Non-Monotonic Constructs} \\[2ex]
        \item \alert<3>{Aggregations I: Aggregation Functions} \\[2ex]
        \item \alert<4>{Aggregations II: \sql{group by}, \sql{having}} \\[2ex]
        \item \alert<5>{\sql{union}, Conditional Expressions} \\[2ex]
        \item \alert<6>{\sql{order by}} \\[2ex]
        \item \alert<7>{SQL-92 Joins, Outer Join}
      \end{enumerate}
      \bigskip
    \end{goal}
  \end{frame}
}

\theme{Running Example}