Dear All Studend,
Below are lessons that you must be reviewed for your final exam:
1. Logical Structure or Physical Structure of Oracle database
2. Relational Algebra: consider the following schema:
Suppliers(sid: integer, sname: string, address: string)
Parts(pid: integer, pname: string, color: string)
Catalog(sid: integer, pid: integer, cost: real)
1. Find the names of suppliers who supply some red part.
2. Find the sid of suppliers who supply some red or green part.
3. Find the sid of suppliers who supply some red part or are at 221 Packer Ave.
4. Find the sid of suppliers who supply some red part and some green part.
5. Find the sid of suppliers who supply every part.
6. Find the sid of suppliers who supply every red part.
7. Find the sid of suppliers who supply every red or green part.
8. Find the sid of suppliers who supply every red part or supply every green part.
9. Find pairs of sid such that the supplier with the first sid charges more for some part
than the supplier with the second sid.
3. Normalization: please review back your mid-term exam. I attached with this email.
