Database Tutorial

• SQL (αρχή) : https://www.youtube.com/watch?v=p3qvj9hO_Bo
• SQL FULL: https://www.youtube.com/watch?v=nJIEIzF7tDw
• Joins: https://www.youtube.com/watch?v=Yh4CrPHVBdE
• Joomla SQL: https://docs.joomla.org/Selecting_data_using_JDatabase
• W3Schools Tutorial: https://www.w3schools.com/sql/