CMU 15-721: In-Memory Databases / Advanced Database Systems [video]
I find it hard to reconcile the incredible generousity of making this material available for free on the internet with the cringeworthiness of Andy Pavlo's style.  I love the material but the "6th form humour" is really off-putting and he doesn't need it.See https://www.youtube.com/watch?v=m72mt4VN9ik&t=781 for an example of what I mean