List of (my)SQL-Tutorials
I did an introduction to (my)SQL once. This were my sources:
MySQL for Absolute Beginners: http://www.elated.com/articles/mysql-for-absolute-beginners
Examples for Beginners: https://www3.ntu.edu.sg/home/ehchua/programming/sql/MySQL_Beginner.html
(My)SQL Cheat Sheet: http://cse.unl.edu/~sscott/ShowFiles/SQL/CheatSheet/SQLCheatSheet.html
Another one: https://en.wikibooks.org/wiki/MySQL/CheatSheet
My notes/write along: https://gist.github.com/rngtng/f2751a7c0f8b3106e0d9