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Thanks for the quick reply! I see - should have thought of that myself :)

As you probably guessed I'm only starting with LaTeX, but have a background as C++ developer. I was hoping for some smart macro/code functionality, because putting the tables in extra files results in a lot of files, so far I ...

For reference purposes I want to copy nearly all tables in my document together into an appendix. How can I achieve that automagically?

One of my tables currently looks like:
\begin {center}
\rowcolors{1}{white}{gray!20}
\begin{tabular}{|ll|}
\hline
\multicolumn{2}{|c|}{} \\
\rowcolor{white ...