Question: Consider a relational database with two relations: course (course-name, room instructor) enrollment (course-name, student-name, grade) Define instances of these relations for three courses, each of

Consider a relational database with two relations: course (course-name, room instructor) enrollment (course-name, student-name, grade) Define instances of these relations for three courses, each of which enrolls five students. Give a file structure of these relations that uses clustering.

Step by Step Solution

★★★★★

3.45 Rating (165 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

course relation room CS101 CS102 CS102 coursename Pascal LISP instructor Calvin B Calvin B Kess J c ... View full answer

Question Has Been Solved by an Expert!

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

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

16-CS-DB (261).docx

120 KBs Word File

Students Have Also Explored These Related Databases Questions!

Consider an employee database with two relations employee (employee-name, street, and city) works (employee-name, company-name, salary) where the primary keys are underlined. Write a query to find...

Given a relational database with a person table that contains an ID, name, and age. What do each of the following return? Select * from person. Select age from person. Select ID from person. ...

Consider again the example of grade insurance. Suppose students know whether they are typically A, B,C, D or F students, with A students having a 75% chance of getting an A and a 25%chance of getting...

PLEASE ANSWER THESE QUESTIONS DONT COPY FROM INTERNET SOURCE PLEASE IT SHOWS PLAG c)What KEY FACTORS may determine the success for Gap Inc.? Explain THREE in your answer. d)Recommendations Make...

The case assignment will be based on Case #13 in your textbooks (Thompson, Strickland, Gamble, Peteraf (23e) - Crafting and Executing Strategy: The Quest for Competitive Advantage Concepts and Cases,...

*choose any 2 of the student activities to do* Although PAC Resources is a fictional organization, it experiences many of the difficulties common in today's business climate. In response to declining...

Hello, Would you please review the attached assignment? I know I have errors in and this assignment carries into the rest of the course so I need to get it corrected to move forward. I have attached...

Journal of Case Studies in Education Elementary teachers' experiences and perceptions of departmentalized instruction: A case study Alecia Strohl Valdosta State University Lorraine Schmertzing...

The world's largest tires have a mass of almost 6000 kg and a diameter of 3.72 m each. Consider an equilateral triangle with sides that are 3.72 m long each. If equal positive charges are placed at...

Cushman Company had $800,000 in sales, sales discounts of $12,000, sales returns and allowances of $18,000, cost of goods sold of $380,000, and $275,000 in operating expenses. Gross profit equals:

Price of IBM call option for the exercise price of $95 is two dollars. What is the payoff per share for a long position in the option if the stock price at expiration is $116

A Statistical Analysis In the article Robbing Banks Reilly et al. studied several aspects of bank robberies. As these researchers state, Robbing a bank is the staple crime of thrillers, movies and...

What is one social issue that has stood out to you and deserve more attention?

1. If an industry is formed by six companies. Four companies have sales of $ 10 each, and two companies have sales of $ 5 each. a. What is the concentration ratio of four companies for this industry?...

Consider a person on the Moon who launches herself into a standing broad jump at 45 degrees. The average force generated during launching is, F = 2W, and the distance over which this force acts is 60...

The following data were taken from the accounts of Fluter Hardware, a small retail business. Sales $118,200 Sales returns and allowances 970 Sales discounts 680 Merchandise inventory, January 1...

This companys sales force has been split into two separate locations. One location has no direct manager and has developed strong team cohesion and works productively. Once a new manager, Tony, comes...

Suppose you wish to store utility bills for a large number of users, where each bill is identified by a customer ID and a date. How would you store the bills in a key-value store that supports range...

Apache Spark: a. How does Apache Spark perform computations in parallel? b. Explain the statement: Apache Spark performs transformations on RDDs in a lazy manner. c. What are some of the benefits of...

Suppose you wish to model the university schema as a graph. For each of the following relations, explain whether the relation would be modeled as a node or as an edge: (i) student (ii) instructor...

Fill in the blanks below to complete the following Apache Spark program which computes the number of occurrences of each word in a file. For simplicity we assume that words only occur in lowercase,...

What is the conceptual problem with the following snippet of Apache Spark code meant to work on very large data. Note that the collect() function returns a Java collection, and Java collections (from...

The following data was obtained from 6 months of traffic accident records in the north direction and the south direction of the NJ turnpike. The variable "total number of fatal and non-fatal crashes"...