Consider this schema for a music industry database where the primary key for each table are...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
Consider this schema for a music industry database where the primary key for each table are underlined (and stated after the relation in case there is a glitch in canvas). On this schema, which of the following queries return the CID of RecordCompanies who have never produce an album. Musician(mID, surName, firstName, birthdate) mID is key Album(alD, title, mID, year) alD is key RecordCompany(CID, name, president) CID is key Produced(album, company) album and company together are the key Integrity constraints Album(mID) Musician(mID) Produced(album) Album(alD) Produced(company) Record Company(CID) a) TCID (Produces company/cID RecordCompany) True b) TCID (RecordCompany) Tcompany (Produced) True c) TCID (RecordCompany - Produced) False d) IICID (Musician Album album-aID RecordCompany) - IIcompany (Produced) True e) IICID (Musician x Album RecordCompany) False - IIcompany (Produced x RecordCompany) Consider this schema for a music industry database where the primary key for each table are underlined (and stated after the relation in case there is a glitch in canvas). On this schema, which of the following queries return the CID of RecordCompanies who have never produce an album. Musician(mID, surName, firstName, birthdate) mID is key Album(alD, title, mID, year) alD is key RecordCompany(CID, name, president) CID is key Produced(album, company) album and company together are the key Integrity constraints Album(mID) Musician(mID) Produced(album) Album(alD) Produced(company) Record Company(CID) a) TCID (Produces company/cID RecordCompany) True b) TCID (RecordCompany) Tcompany (Produced) True c) TCID (RecordCompany - Produced) False d) IICID (Musician Album album-aID RecordCompany) - IIcompany (Produced) True e) IICID (Musician x Album RecordCompany) False - IIcompany (Produced x RecordCompany)
Expert Answer:
Related Book For
International Marketing And Export Management
ISBN: 9781292016924
8th Edition
Authors: Gerald Albaum , Alexander Josiassen , Edwin Duerr
Posted Date:
Students also viewed these databases questions
-
$ yzdx +dy +dz traversed from vertex C(1,1,1) and then Find " where Gis to B(1,0,0) A (0,0,0) back to vertex A. contour of triangle to and then
-
Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...
-
After pollen lands on a stigma, it is far away from the ovule with the megagametophyte, which holds the egg (the megagamete). How are the two sperm cells transported from the stigma to the egg?
-
Refer to Exercise 34. Describe the pooled t test for testing H0: µ1 - µ2 = Î0 when both population distributions are normal with Ï1 = Ï2. Then use this test procedure to...
-
What are your legal remedies if a credit reporting agency engages in unfair reporting practices?
-
Follow the steps below to prove the LLN without using CLT. (a) Let \(X\) be a random variable with mean \(\mu\) and variance \(\sigma^{2}\). Then for any real number \(\alpha>0,...
-
Prepare journal entries in the General Fund of the Brownville School District. a. The District had outstanding encumbrances of $13,000 for band instruments from the previous year. It is the Districts...
-
Robert purchased US$15,000 from a bank in America, which charged him a commission of 0.9%, and sold the US dollars to a bank in Canada, which charged him a 0.24% commission. How much money did he...
-
Their 1.5 inch, 90-degree copper elbow (see below) is a very popular item in the plumbing line that comes packaged in 10 elbows per box. The box costs about $65 to Western, and Western sells it at...
-
18. Determine the electron geometry (eg) and molecular geometry (mg) of XeF4. A) eg-tetrahedral, mg-tetrahedral B) eg-linear, eg-linear C) eg-tetrahedral, mg-bent D) eg trigonal bipyramidal,...
-
What are the implications of the Internet for Place?
-
Assume that we have a production process that exhibits increasing and then decreasing marginal productivity. That is, as we increase output, the marginal product of labor starts at some level above...
-
Explain which of the following is a fixed cost or a variable cost for General Motors. a. The cost of aluminum used for its automobiles. b. The property taxes on its Bowling Green, Kentucky assembly...
-
A female student who lives on the fourth floor of Bates Hall is assigned to a new room on the seventh floor during her junior year. She has 11 heavy boxes of books and stuff to move. Discuss the...
-
What is a digital contact strategy? Which success factors will make the contact strategies more effective?
-
On the 1st of July 2020 Brian is a financial planner who received $100,000 low interest loan from his employer, Melbourne Bank. The low interest loan rate is 4%. He used $90,000 to buy a Jeep of...
-
Suppose the government bond described in problem 1 above is held for five years and then the savings institution acquiring the bond decides to sell it at a price of $940. Can you figure out the...
-
Exchange rate fluctuations between the Japanese yen, the euro, and the US dollar have posed serious problems for Strato Designs (the name of the company is disguised). The California company produces...
-
Why might an international marketer who is involved in foreign production still have problems concerning channel control and cooperation? Would such a marketer handle channel conflict differently...
-
In 1943 a 17-year-old Swedish boy started what was to become a multibillion euro company by selling work pants and other farm supplies door-to-door. Ingvar Kamprad began selling farm implements under...
-
Many hotel jobs are inherently dead end; for example, maids, laundry workers, and valets, either have no great aspirations to move up, or are just using these jobs temporarily, for instance, to help...
-
Using what you learned in this chapter of Dessler Human Resource Management, build on the companys new system by recommending two more specific career development activities the hotel should...
-
Should other employees (cleaner/spotters, counter people) be put on a similar plan? Why or why not? If so, how exactly?
Study smarter with the SolutionInn App