kindly need full answer it 403 fundamental database

1.Give an example of 3 relations illustrating primary keys and foreign keys.

4 Marks

Learning Outcome(s): LO7

Use Structured Query Language to perform queries and to perform relational operations.

Question Two

Consider the following relations:

Student(sID, surName, firstName, campus, email)

Course(dept, cNum, name)

Offering(oID, dept, cNum, term, instructor)

Took(sID, oID, grade)

Such as:

Offering[dept, cNum] ⊆Course[dept, cNum]

Took[sID] ⊆Student[sID]

Took[oID] ⊆Offering[oID]

Answer the following query using relational algebra:

  • Give the Student number of all students who have taken the course number “343” by the department “CS”.
  • Find sID of all students who have earned some grade over 80 and some grade below 50.
  • Find the Terms when the course number “369” by the department “CS” was not offered.
  • Find the Department and course number of courses that have never been offered.
Looking for solution of this Assignment?


We deliver quality original papers

Our experts write quality original papers using academic databases.  

Free revisions

We offer our clients multiple free revisions just to ensure you get what you want.

Discounted prices

All our prices are discounted which makes it affordable to you. Use code FIRST15 to get your discount

100% originality

We deliver papers that are written from scratch to deliver 100% originality. Our papers are free from plagiarism and NO similarity

On-time delivery

We will deliver your paper on time even on short notice or  short deadline, overnight essay or even an urgent essay