SQL is one of the most important languages when it comes to finding a job. I have had multiple jobs where my day-to-day work involved writing complex SQL scripts. So learning SQL means acquiring one of those skills that takes time to master, but opens a large number of doors.
This chapter teaches you most of what you need to know about SQL. It takes approximately 2-3 hours in total, but it should take you from a full beginner to a mid-user level. I have been in charge of interviewing potential candidates for SQL positions, and I ...
