06 Sep Database Design
1) For databases the three-schema architecture is used to maintain the main characteristics of
databases.
(i) What are these characteristics? (ii) Can a two-schema architecture be used instead (explain)? What needs to be changed?
(10, 10 points)
2) Explain the difference between physical and logical data independence. (10 points)
3) Discuss the different types of user-friendly interfaces and the types of users who typically use each.
(10 points)
4) List the capabilities that should be provided by a DBMS. (10 points)
5) Define eight terms out of the following: data model, database schema, database state, internal schema, conceptual schema, external schema, data independence, DDL, DML, SDL, VDL,
query language, database utility, catalog, client-server architecture (20 points)
6) If a database is not maintained or if incorrect data is entered into the database, serious problems can occur, what kind of problems could occur if a student database is not
maintained? (10 points)
7) How can you get more information from the same amount of data by using a database approach instead of a non-database approach?
(10 points)
(Total 90 points)
Hint: To answer the above questions you may need to search other resources (e.g. web, etc.,) as well
as the textbook or notes on Blackboard.
Our website has a team of professional writers who can help you write any of your homework. They will write your papers from scratch. We also have a team of editors just to make sure all papers are of HIGH QUALITY & PLAGIARISM FREE. To make an Order you only need to click Ask A Question and we will direct you to our Order Page at WriteDemy. Then fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Fill in all the assignment paper details that are required in the order form with the standard information being the page count, deadline, academic level and type of paper. It is advisable to have this information at hand so that you can quickly fill in the necessary information needed in the form for the essay writer to be immediately assigned to your writing project. Make payment for the custom essay order to enable us to assign a suitable writer to your order. Payments are made through Paypal on a secured billing page. Finally, sit back and relax.
About Writedemy
We are a professional paper writing website. If you have searched a question and bumped into our website just know you are in the right place to get help in your coursework. We offer HIGH QUALITY & PLAGIARISM FREE Papers.
How It Works
To make an Order you only need to click on “Order Now” and we will direct you to our Order Page. Fill Our Order Form with all your assignment instructions. Select your deadline and pay for your paper. You will get it few hours before your set deadline.
Are there Discounts?
All new clients are eligible for 20% off in their first Order. Our payment method is safe and secure.