What I meant was that I was familiar with the syntax and use of MySQL & PDO.
PDO is an abstraction layer for PHP (an extension) & PHP employs drivers and plugins for accessing MySQL (as do python & perl). This basically means I'm referring to extensions/libraries of a scripting language. While you may take a particular item in a list literally, lists are usually abridged or abbreviated (though, in the case it was pointless because I had to type up this long response for you to understand what I meant). You're supposed to use context clues.
Also, I felt it was worth noting because some people use only MySQL or a different DBMS & thus a different syntax entirely. You'll also notice I put scripting languages there as well, which you can take literally and say that I'm wrong again in calling them "programming languages" because they're not compiled. I figure this is the bitcoin forum, not stack exchange; was such technicality really needed for a newbie forum post?