1) What is a DBMS? What do we use it for?
2) What is a Relational DBMS? How is it different from DBMS? Give examples for both.
3) Which user groups interact with a running DBMS?
4) Describe the following terms:
a. Data model. What are its three parts?
b. Logical schema
c. Conceptual schema
d. Physical schema
5) How is SQL used in RDBMS?
6) What is redundancy? Give one advantage and disadvantage of redundancy.
7 Identify some informal queries and update operations that you would expect
to apply to the database shown in Figure 1.2.
8 Specify all the relationships among the records of the database shown in
9 Cite some examples of integrity constraints that you think can apply to the
database shown in Figure 1.2.
10) Consider Figure 1.2.
a. If the name of the ‘CS’ (Computer Science) Department changes to ‘CSSE’
(Computer Science and Software Engineering) Department and the corresponding
prefix for the course number also changes, identify the columns
in the database that would need to be updated.
b. Can you restructure the columns in the COURSE, SECTION, and
PREREQUISITE tables so that only one column will need to be updated?
Delivering a high-quality product at a reasonable price is not enough anymore.
That’s why we have developed 5 beneficial guarantees that will make your experience with our service enjoyable, easy, and safe.
You have to be 100% sure of the quality of your product to give a money-back guarantee. This describes us perfectly. Make sure that this guarantee is totally transparent.Read more
Each paper is composed from scratch, according to your instructions. It is then checked by our plagiarism-detection software. There is no gap where plagiarism could squeeze in.Read more
Thanks to our free revisions, there is no way for you to be unsatisfied. We will work on your paper until you are completely happy with the result.Read more
Your email is safe, as we store it according to international data protection rules. Your bank details are secure, as we use only reliable payment systems.Read more
By sending us your money, you buy the service we provide. Check out our terms and conditions if you prefer business talks to be laid out in official language.Read more