Huib Laurens writes:
I run three mediawiki installs all using one and the
same databases, so it
will not be a problem if you have two wiki's working out of one database.
There are three possibilities when you talk about multiple wikis in one database:
1. One database, multiple database prefixes, one code tree
2. One database, multiple database prefixes, multiple code trees
3. One database, one database prefix (all wikis literally share the same tables), any
number of code trees (one or multiple)
The poster is asking about case #3. Doing this with one code tree plus "GUI changes
per hostname" is easy. If you have 3
code trees, when you upgrade MediaWiki, do you do three upgrades or one? When you run
maintenance/update.php, which wiki do you run it from? You avoid these issues with one
code tree and changing the skin by hostname.
DanB