The Stanford database class should be sill open for self study. It contains video lectures, and lots of database query exercises. For the exercises, you can write the query code in the web browser.

https://class2go.stanford.edu/db/Winter2013/preview/

I have taken some MOOCs in past years, including Andrew Ng's Machine Learning, and Martin Odersky's Functional Programming Principles in Scala, and I have to say that Jennifer Widom's database class is the most streamlined, most well thought, and most smooth of all the MOOCs I have seen.

Everything works, the lectures are packed with information and give sufficient material for one to complete the exercises, there are no rough edges, and there is a large-ish amount of exercises that give good coverage of the lectured material.