This is personal study note Copyright and original reference: https://www.youtube.com/watch?v=KLZWDOK8kZM&list=PLVsNizTWUw7HhYtI-4GGmlJ5yxNdwNI_X&index=2&t=0s ================================================================================ Learning road map Dotted line: the course when you are web developer When you need to learn MySQL itself, learn 7 to 11 sections ================================================================================