You keep getting warnings and emails about deadlocks, but let's be honest: you're not really sure how they happen or what to do about it. Brent Ozar will show one, use sp_BlitzLock to analyze it, then fix it.
We will see two important case studies where the optimizer is obviously a criminal who has killed the query performance. We will together with carefully investigate inside the query optimizer understand the reason.
With the grow of the SQL Graph surface in 2017-2019 (incl. the ShortestPath() function) we have a chance to do some pretty exciting calculations and start analysing different types of Networks such as the Social ones.