\begin{frame}
  \frametitle{Dynamic APIs: Advantages and Disadvantages}
  
  \begin{goal}{Advantages and Disadvantages of Dynamic APIs}
    \begin{itemize}
    \medskip
      \item powerful, flexible, but error-prone
    \medskip
      \item SQL query given as strings may be incorrect 
        \begin{itemize}
          \item no error checking at development time
          \item column names and types unknown at compile time
        \end{itemize}
    \medskip
      \item risk of SQL injection
    \medskip
      \item mismatch between SQL and Java types (isNull)
    \medskip
    \end{itemize}
  \end{goal}
\end{frame}