Apologies for the self-plug, but you might find http://pgexercises.com/ http://pgexercises.com/ useful for the SQL side of learning Postgres. In terms of rest

Apologies for the self-plug, but you might find http://pgexercises.com/ http://pgexercises.com/ useful for the SQL side of learning Postgres. In terms of rest of the concepts, the Postgres documentation is actually really rather good!