Apart from the AI class and Machine Learning Class, here is another online class offered by Stanford University's Computer Science Department: Introduction to Databases, by Prof Jennifer Widom. Sign up here: http://www.db-class.com/
This course covers database design and the use of database management systems for applications. It includes extensive coverage of the relational model, relational algebra, and SQL. It also covers XML data including DTDs and XML Schema for validation, and the query and transformation languages XPath, XQuery, and XSLT. The course includes database design in UML, and relational design principles based on dependencies and normal forms. Many additional key database topics from the design and application-building perspective are also covered: indexes, views, transactions, authorization, integrity constraints, triggers, on-line analytical processing (OLAP), and emerging "NoSQL" systems.
Check out the introductory video here: