Thread:Project:Support desk/Convert Dokuwiki Tables/reply

I have not tried this myself. However, the work needed to convert a DokuWiki into a MediaWiki installation will depend on how similar both are (table structure inside the DB, syntax of the wiki text itself) and on, if someone already did that before (and you can more or less re-use, the code he wrote).

In this case it seems like there already is some kind of converter: https://www.dokuwiki.org/tips:mediawiki_to_dokuwiki_converter

Maybe it does not work right out of the box, but it might give you an idea, of what might be needed.