1.Please create related three tables about a subjects (for exp. Students, Employees, Products, Books, Club_Membership, Hobbies etc.) must contain at least a default value definition and a primary key, a foreign key,unique,not null and check constraints. (10 points)

2.Insert any three records to each table. (10 points) Write SQL commands below:

3.Update at least one record on each table. (10 points) Write SQL command/s below: