In this weeks show we start off the podcast with discussion on SQL performance, different types of join and effective indexing based on the query planner.\nWe then move on to Mick\u2019s success with using Let\u2019s Encrypt on his personal site, along with some interesting talking points he picked up in a recent book he has been reading.\nReturning \u2018$this\u2019 from a method call is then discussed - were we debate about being strict on the API\u2019s you design.\nFinally, Fraser chats about another successful feature being developed in a TDD manner, fun with eyeBeacons and disadvantages to DocBlocks/Comments as Code.