Are Schipperkes good with cats?

No, Schipperkes are not always good with cats. They were used as ratters aboard ships and have a high prey drive, so they will likely give chase to your cat. Of course, each dog (and cat) has their own preferences and temperament, and you can feel fairly confident your Schipperke, if properly socialized to your cat and introduced at a young age, should get along with a cat just fine.