Consider the following conceptual schema of a sample database domain that contains information about undergraduate and postgraduate students, subjects, and enrolments performed by the students. STUDENT SUBJECT ID1 ID2 snumber ID first-name last-name hobby [1..] – Related to enrolment-date code title session year credits ENROLMENT POSTGRADUATE UNDERGRADUATE jobs (0..* facebook-friends [0..* A database designer applied a process of logical design and he/she transformed the conceptual schema into the following collection of relational schemas. STUDENT (snumber,first-name, last-name, hobby,jobs, facebook-friends) primary key -(snumber) SUBJECT (code,title,session,year, credits) primary key -(code) candidate key(title) ENROLMENT (snumber, code, title,enrolment-date) primary key = (snumber, code, enrolment-date) foreign key 1 snumber) references STUDENT (snumber) foreign key 2 (code) references SUBJECT (code) foreign key 3 = (title) references SUBJECT (title) (1) Find all functional and multivalued dependencies in the relational schemas STUDENT SUBJECT, and ENROLMENT (2) Find all minimal keys in the relational schemas STUDENT, SUBJECT, and ENROLMENT. List the derivations of all minimal keys. (3) For each one of the relational schemas find the highest normal form a schema is in. List the justifications for each highest normal form found. (4) Decompose all relational schemas that are not in 4NF into 4NF. List all relational schemas obtained from the decompositions.
HOW OUR WEBSITE WORKS
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 PLACE ORDER on top of this page and we will direct you to our Order Page at WriteDen. 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.
Deadline range from 6 hours to 30 days.
Once done with writing your paper we will upload it to your account on our website and also forward a copy to your email.
Upon receiving your paper, review it and if any changes are needed contact us immediately. We offer unlimited revisions at no extra cost.
Is it Safe to use our services?
We never resell papers on this site. Meaning after your purchase you will get an original copy of your assignment and you have all the rights to use the paper.
Our price ranges from $8-$14 per page. If you are short of Budget, contact our Live Support for a Discount Code. All new clients are eligible for 15% off in their first Order. Our payment method is safe and secure.
Please note we do not have prewritten answers. We need some time to prepare a perfect essay for you.
Interested in purchasing an essay from us? Click PLACE ORDER on top of this page