\documentclass{beamer}

\usepackage{array}

\begin{document}

\begin{frame}
  \begin{tabular}{ccccc<{\onslide<2->}|c<{\onslide<3->}|c@{\hspace{\tabcolsep}\onslide<3->\vrule width .4pt\onslide}}
    $p_1$ & $p_2$ & $\ldots$ & $p_{9}$ & $p_{10}$ & $W$  & $D$\\
    $1$   & $1$   & $\ldots$ & $1$      & $1$     & $w_1$& $d_1$\\
    $1$   & $1$   & $\ldots$ & $1$      & $0$     & $w_2$& $d_2$\\
    $1$   & $1$   & $\ldots$ & $0$      & $1$     & $w_3$& $d_3$\\
    $1$   & $1$   & $\ldots$ & $0$      & $0$     & $w_4$& $d_4$\\
    $\vdots$ & $\vdots$ & $\vdots$ & $\vdots$ & $\vdots$ & $\vdots$ & $\vdots$\\
    $0$   & $0$   & $\ldots$ & $0$      & $1$     & $w_{1023}$& $d_{1023}$\\
    $1$   & $1$   & $\ldots$ & $0$      & $0$     & $w_{1024}$& $d_{1024}$
  \end{tabular}
\end{frame}

\end{document}