In case of double column layout, tables which do not fit in single
column width should be set to full text width. For this, you need to
use \verb+\begin{table*}+ \verb+...+ \verb+\end{table*}+ instead of
\verb+\begin{table}+ \verb+...+ \verb+\end{table}+ environment.
Lengthy tables which do not fit in textwidth should be set as rotated
table. For this, you need to use \verb+\begin{sidewaystable}+
\verb+...+ \verb+\end{sidewaystable}+ instead of
\verb+\begin{table*}+ \verb+...+ \verb+\end{table*}+ environment.
This environment puts tables rotated to single column width. For
tables rotated to double column width, use
\verb+\begin{sidewaystable*}+ \verb+...+ \verb+\end{sidewaystable*}+.
