You may discuss problems with other students in the class. However, each student must write up his or her own solution to each problem independently. That is, while you may formulate the solutions to problems in collaboration with classmates, you must be able to articulate the solutions on your own.
The following problems are in the course text Database Management Systems by Ramakrishnan and Gehrke
1. Chapter 2, exercise 2.2, pg. 46 -- do only parts 1,2, 5 and 6.
2. Chapter 2, exercise 2.6, pg. 48.
3. Chapter 3, exercise 3.8, pgs. 84-85 -- do only parts 1,2 and 3.
4. Chapter 3, exercise 3.12, pg. 85 -- do only for parts 1,2, 5 and 6 of exercise 2.2.
5. Chapter 3, exercise 3.16, pg. 86.