Quoting Ashar Voultoiz, from the post of Sun, 31 Oct:
Randy McCall wrote:
In some of the other php/sql applications I've
been using, they have
simple utility for backing-up and restoring the sql database
(probably written for the use of those unfamiliar with the
intricacies of sql programming/operation like myself). Is there any
similar utility for Mediawiki?
There isn't such a tool actually although you can use Special:Export to
extract one article.
last I check this was a "write only backup medium" since I found no way
to suck that single page back in.
I personally use mysqldump other all my databases every 15 days or so
and zip / archive the dumps on an other disk.
I do that daily with my site, keep 6 back "issues" on the server (i.e.
one week) and rsync the last one to my home machine. Better safe than
sorry (and sorry I've been. believe me)
Royale with cheese