Question: Written Assignment (Homework) #2 (10-point) Convert the following ER diagram into a relational database schema: S FirstName S LastName S ID student S Major takes

Written Assignment (Homework) #2 (10-point) Convert the following ER diagram into a relational database schema: S FirstName S LastName S ID student S Major takes C ID course C Room C Name C InstName relational algebra (90-point) Express the following queries on the above (20-point each) and relational calculus (10-point each): 1. Find names of all students who take at least two courses taught by Peterson but take only one course from Davidson. 2. Find S_IDs of the students who take all courses taught by Davidson. 3. Find al instructors (C InstNames) who currently teach at least three courses Please submit legible answers

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock blur-text-image

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Mills Corporation acquired as a long-term investment $240 million of 6% bonds, dated July 1, on July 1, 2021. Company management has the positive intent and ability to hold the bonds until maturity....

Written Assignment (Homework) #2 (10-point) Convert the following ER diagram into a relational database schema: S FirstName SLastName S ID student S Major takes course C ID C Room C Name C ?nstName...

Transforming ERD into a relational database schema The Luxury Lodgings Reservation database design is on the next page. Your task is to transform (map) this ER Diagram into a complete relational...

Lesson 12 Quiz (Show/Explain all Work) IST 230 Relations on Sets, Databases 1. Let A = {0, 1, 2, 3, 4, 5, 6, 7, 8} and B = {1, 2, 3, 4, 5, 6, 7, 8}. Now let R be a binary relation R from A to B such...

ER Modeling Question 1: [10 Marks] Assume your company is developing a generic digital camera online purchasing system that can be sold to different camera stores. An initial analysis phase of the...

Question 1: [10 Marks] Assume your company is developing a generic digital camera online purchasing system that can be sold to different camera stores. An initial analysis phase of the project has...

please help me with this as my tutor fell through and I dont understand all sections these are the programs it gave me this is the main java above this is the grade book reader above these are the...

the following relational algebra questions based on tables S1 and S2 (below) Question 1 What is the output of S1 S2 ? The row identified by sid 22 The rows identified by sid 31 and 58 The row...

Consider the following requirement analysis description and the relevant ER diagram design. The university is organized into colleges (COLLEGE), and each college has a unique name (CName), a main...

Please help Below is the code used // Please change the following comment part into you name // #0#BEGIN# DO NOT MODIFIE THIS COMMENT LINE! // Chengfei // Wang // #0#END# DO NOT MODIFIE THIS COMMENT...

A discrete sequence {xn} can be converted into a continuous representation x(t) = ts X n= (t n ts) xn, where ts is the sampling period. (a) State two characteristic properties of Dirac's function. [2...

For a "Primal maximization problem" with optimal point equal to (x1 = 5, x2 = 1) and Z = 56, its respective "Dual minimization problem " would have __________. Please choose the option that would...

Let Consider on Clo.1] the we followin 9 noms: I fllco = 3UP te [o.1] |lf lls= af%lf(t)ldt V fec [o1). %3D Prove th at is C To.1] if and only if act. norm on

How much awareness is created when a new product is invented? 1 0 0 % 3 3 % 6 7 % 8 0 % 2 5 %

Question 9 Order the following steps when setting up a Total Station over a point up to before centering the circular and long (plate) bubble. - 1. 2. 3. 4. 5. 6. Use the footscrews to re-center the...

Question 8 To get the circular bubble of a level in the center, both foot screws are turned in the same direction. True False

Question 7 You will require 2 staves to do a 2 Peg test. True False

Question 6 Order the following steps when setting up a level instrument. - 1. 2. 3. 4. 5. 6. 7. Fix instrument to tripod with screw from underneath - 1. 2. 3. 4. 5. 6. 7. Level the circular bubble...

Question 5 The following equipment is most essential when observing points with a Total Station. (Select only 5) Negative marking will be applied for wrong answer(s) selected. Do not guess! Tripod...

------------------------------------- At the beginning of its first year of operations, Bonita Limited has 4,900, $3 preferred shares and 48,000 common shares. Using the format shown below, allocate...

1.7 Explore essential skills for developing your career in HR or any other career path.

What are the environmental factors that affect HRM? Describe each one.

Define profession. Do you believe that the field of HRM is a profession? Explain your answer.