A module for teaching the basics of database design. Entity attribute primary key select from where Task App Attribute domanis and date attribute types Logical and comparision operators Task Supermarket COMPOSiTe and optional attributes order by and distinct Task Do-It-Yourself 1:1 relationship and foreign key pattern matching Task Flags 1:N relationship keyword as Esercizio Aunt Adelina' cookbook how to choose between entity and attribute N:N relationship partial partecipation Task Wine Relationship attributes is, is not and null Task Songs