Explain the difference between a candidate key and the identifier of an entity type.

Question:

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Essentials Of Systems Analysis And Design

ISBN: 9780133469530

5th Edition

Authors: Joseph Valacich, Joey F George

See More Books

Question Posted: Aug 31, 2023 01:03 PM

See More Questions

List three specific parts of the Case Guide, Objectives and Strategy Section (See below) that you had the most difficulty understanding. Describe your current understanding of these parts. Provide...
What is the difference between a candidate key and the primary key for a given relation? What is a superkey?
Explain the difference between a Type I error and a Type II error.
How would you apply this concepts to call center statistics? There are two numerical ways of describing quantitative variables, namely measures of location, and measures of dispersion. Measures of...
Most sales of securities at a loss result in capital losses. Under what circumstances would a loss on the sale of a security be treated as an ordinary loss? Explain the rationale for allowing this...
Dalton Jewelers in Chicago engaged in lengthy negotiations with Repp Realty Company in New York City for the purchase of a new building. The price of the building kept the parties from concluding an...
When a dielectric slab completely fills the space between the plates of a parallel-plate capacitor, the magnitude of the bound charge is one-fourth the magnitude of the free charge. (a) What is the...
1. What are the factors driving the diversification of Tune Group? 2. What is the Tune Group portfolio, what contribution does each SBU make and, therefore, what is the dominant logic for this Group?...
16. Using the given data find value of resonance energy of benzene C6H6. AydgH of cyclohexene = -119 kJ/mole AhydgH of benzene = -206.5 kJ/mole (a) -150.5 kJ/mole (b) -325.5 kJ/mole (c) -87.5 kJ/mole...
Match each of the key terms with the definition that best fits it. ___________ A relationship between the instances of one entity type. Here are the key terms from the chapter. The page where each...
The method for evaluating alternatives used in Figure 7-19 is called weighting and scoring. This method implies that the total utility of an alternative is the sum of the products of the weights and...
Royal Empire Ltd commenced trading many years ago. Equity at 30 June 2018 comprised: Share capital, 200 000 ordinary shares fully paid at $5 General reserve Retained earnings $1 000 000 335 000 171...
Retailers have never been so adept at meeting customers needs as they are now. If this is so, then why is direct marketing growing so fast?
Under what circumstances would an UnknownHostException be thrown?
Retin-A is a topical ointment originally developed for the treatment of severe cases of acne and related skin disorders. An observed side benefit resulting from use of this product is its beneficial...
In what circumstances should you never use the telephone for contacting prospects? Give examples of companies or situations where this is the case.
Why is it not common to work directly with the InputStream and OutputStream objects obtained from a Socket object?
How is the present value of a lump sum determined?
Q1) What is the a3 Value Q2) What is the a7 Value Q3) What is the a4 Value Q4) What is the b3 Value Q5) What is the b2 Value Q6) What is the sign of 2nd constraint? A pastry chef at a bakery wants to...
What is the daily standup in Scrum? Why is this meeting held? Who is involved? What does it contribute to the team?
What is the purpose of product backlog grooming? Who is involved with this activity? What exactly does it entail?
How does the Sprint Commitment differ from the Sprint Backlog in sprint planning?
2. Suppose that X = {8] : ER (xy)(x-2) = ( Determine (with justification) whether X is a subspace of R. [2 marks]
Use the given inverse to solve the system of equations. x-y+z = - 1 1 -1 1 5 - -5 -4 3y+z = - 3 The inverse of 0 3 1 is 1 - 1 1 x-5y = 73 1 - 5 0 - 3 4 3
5. For each of the following graphs, determine the eccentricities of each vertex, and the diameter, radius, and center of the graph. 5 Answer. 6 3 (a) 3 7 (c) 8 2 3 + 6 9 12 5 8 11 4 7 10 (b) (d)

Explain the difference between a candidate key and the identifier of an entity type.

Question:

Step by Step Answer:

In database design both candidate keys and identifiers play important roles in uniquely identifying entities within a relational database However they ...View the full answer

Essentials Of Systems Analysis And Design

Students also viewed these Computer science questions