Assuming the course is meant to be simple and informal (no heavy relational DB theory or statistics involved), consider following along the W3C tutorial: http://www.w3schools.com/sql/default.asp
Unfortunately, it probably is the case that these people don't care too much about learning and they're just there because they have to. A self-teaching approach only works when the individual is motivated, curious and critical. It's very disheartening, but if your audience can't ultimately be made to care about the topic, straight up telling them the essentials of what they have to do might be all you can do. Especially since you're not an experienced teacher, so it can't be expected that you can pull of some incredible stunts of pedagogy.
But if you're feeling adventurous, an approach you might want to use (dunno how much time you have available though) is to start by trying and teaching them programming without actually writing code, to get into the right mindset.
Programming is ultimately about putting together a plan to solve a problem. Present them with an intuitive, real life scenario with a set of very basic tools to solve it: cooking might work well, recipes are basically code already. Take an onion, peel, rinse, cut it; heat oil in a pan, sauté UNTIL brown (you've got a loop already). Many cakes require preparing custard for filling: like most cooking books do, show how to make it once, then wrap it in functional abstraction and call CUSTARD(eggs, milk, sugar) whenever its needed afterwards. Hell, advanced recipes even require multitasking.
You do this drawing a flowchart at the whiteboard from their input a few times, then start replacing onions with integers.
Regardless of the fluff you put around them, flowchart-based applications are often used to introduce children to programming because they give a visual representation of what you'd otherwise put in code, which is usually less intuitive.