Construct an e-r diagram that models exams as entities

Assignment Help Basic Computer Science

Reference no: EM131058021

Consider a database used to record the marks that students get in different exams of different course offerings (sections).

a. Construct an E-R diagram that models exams as entities, and uses a ternary relationship, for the database.

b. Construct an alternative E-R diagram that uses only a binary relationship between student and section. Make sure that only one relationship exists between a particular student and section pair, yet you can represent the marks that a student gets in different exams.

Reference no: EM131058021

Questions Cloud

Heat exhaustion or stroke : He refuses because of the pain it causes his ankles, knees, and hips. He also states that the excessive heat is debilitating and he fears heat exhaustion or stroke. Ms. Demeter threatens to fire Joe. They both decide to go see the dealership manag..

Five-year zero coupon bond with a face value : Diane is interested in buying a five-year zero coupon bond with a face value is $1,000. She understands that the market interest rate for similar investments is 9 percent. Assume annual coupon payments. What is the current value of this bond?

Coupon bonds outstanding with a current market price : Redesigned Computers has 6.5 percent coupon bonds outstanding with a current market price of $832. The yield to maturity is 16.28 percent and the face value is $1,000. Interest is paid semiannually. How many years is it until these bonds mature? A. 2..

Perfect approach to managing an organization : If you were asked to select the perfect approach to managing an organization, which theorist model or approach would you select? Why this specific approach?

Construct an e-r diagram that models exams as entities : Construct an alternative E-R diagram that uses only a binary relationship between student and section. Make sure that only one relationship exists between a particular student and section pair, yet you can represent the marks that a student gets i..

Different for a particular asset at particular point in time : What is the difference between the expected rate of return and the required rate of return? What does it mean if they are different for a particular asset at a particular point in time?

Piece of labor legislation : Describe the effect that a piece of labor legislation has had on labor unions and management. Choose a piece of labor legislation you have read about this week that has impacted/continues to impact the organization. Summarize your final recommenda..

How does president have greatest impact on judicial process : How does the President have the greatest impact on the judicial process? Be sure to cite readings whenever possible.

Find the arbitrage-free forward price of corn : The spot price of corn is $2.24 per bushel. The risk-free interest rate is 5% nominal annual compounded every two months. The storage costs for corn are $0.03 per month per bushel, paid at the end of each month. Find the arbitrage-free forward price ..

User Account

All Pages