New Youtube channel with videos that show the LearnSQL system interface

In the new channel we are going to publish:
- Videos that show the functionalities of LearnSQL, that is the system used in Database courses of Barcelona School of Informatics (FIB) of the Universitat Politècnica de Catalunya (UPC) for the e-assessment of databases skills.
- Videos that are used to support the classes in the Database courses.

LearnSQL Channel
https://www.youtube.com/channel/UCAX4i151-1UNg-iBMZgUIWw/videos