The Rams boss was pleased with many aspects of his side's play, particularly the performance of goalscorer Michael Jacobs.
He said: "We're delighted with it (the display) again, we can't ask for any more effort from the players.
"It's not just effort as well, they are playing some great stuff at times.
"It was a great goal from Michael, he took it very well. He's coming along nicely and improving and he's getting used to Championship football having made the step up from League Two with Northampton.
"He looked a threat when he was on the pitch and it's good to see him grow, along with the other young players like Jeff Hendrick and Will Hughes. Hopefully they will continue to grow together.
"Hull will be right up there come the end of the season and that's why we are so pleased with how we played against them, there was nothing between the two teams tonight."