SQL Course: The most popular used query language in history of data manipulation and selection. I will walk you through all the things which I understood and learnt from this course. I will thank these two sites which was very much help full to understand this SQL concepts, Complete SQL Course Mastery by MOSH, SQL Bolt and W3Schools. Most of the concept is based on these two-sites and also, I am using the SQL Database files offered by these sites to learn most of the concept with less amount of data. If you want this content on youtube, please visit this channel which has complete playlist on youtube