Introduction Look at the title it is “How long does it take to learn SQL in 2020?” It could be only “How long does it take to learn SQL ? Why 2020 is attached to make it How long does it take to learn SQL in 2020?” ? In this modern era of  online learning methodology, there are several websites providing online SQL engine where you can experience more interactive way of learning and practicing. Few online ways available for learning are Smarter way of learning Video Le...