Thread:Project:Support desk/How to use the OR operator in queries?

Hi, I'm having a bit of trouble getting my query to work properly.

Basically, I need to use an OR operator - Which seem non-existent in Mediawiki unless you use the query function. The issue is, however, that the query function doesn't recognize shared database tables - Which I need.

Here's how my query looks:

How can I make use of the OR operator using Mediawiki's query system?