Lee Markum has seven lessons for us:
SQL Server indexing basics are critical to query and server performance. Resources, like CPU and disk, are affected by the indexes that you have, or the ones you’re missing.
In the StackOverflow2013 database we’re going to look at Badges and users. Specifically, I want to start by seeing what badges a user has and when that user received them. Some badges, because of the type of badge it is, can be awarded more than once.
Click through for a demonstration.