What is a surrogate key? What are its advantages

Question:

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

Step by Step Answer:

Related Book For book-img-for-question

Database Processing Fundamentals, Design, and Implementation

ISBN: 978-0133876703

14th edition

Authors: David M. Kroenke, David J. Auer

See More Books

Question Posted: Dec 31, 2018 01:18 PM

See More Questions

What is a surrogate key , and under what circumstances would you use one?
What is open-source software, and what are its advantages? Can you think of any disadvantages?
What is a surrogate key, and when should you use one?
A mixture of 1 kmol carbon dioxide, 2 kmol carbon monoxide, and 2 kmol oxygen, at 25C, 150 kPa, is heated in a constant pressure steady state process to 3000 K. Assuming that only these same...
Mei-ling Lee spent much of her childhood learning the art of cookie-making from her grandmother. They passed many happy hours mastering every type of cookie imaginable and later creating new recipes...
A 1500-kg race car can go from 0 to 90 km/h in 5.0 s. What average power is required to do this?
Ask the volunteers how they each felt during this exercise. What were their emotional responses to the different kinds of reinforcement they received? 101-1
In its December 31, 2008 Consolidated Financial Statements, Cola-Cola reports a substantial shift in its net pension liability ($1,328 million) relative to December 31, 2007 ($85 million). a. Given a...
Jan. 1 Beginning inventory... 16 Purchased 20 Purchased. Total goods available for sale. Units 300 200 300 Cost Per Unit $ 14 15 16 @ @ Total Cost $ 4,200 3,000 4,800 $12,000 = = 800 Sales of units...
Most tax practitioners will tell their clients not to contribute appreciated property into their C corporation because even though it can go into the corporation tax-free under Section 351, it will...
When should you use a surrogate key?
What are the three characteristics of an ideal primary key?
A Final Word on Planning and Strategy (p. 175)
A flat sheet is in the shape of a rectangle with sides of lengths 0.400 m and 0.600 m. The sheet is immersed in a uniform electric field of magnitude 85.0 N/C that is directed at 20 from the plane of...
You are a new BCBA working for a therapeutic day school that serves individuals with disabilities from ages 5 through 21. Each classroom has 1 special education teacher, 1 behavior therapist (BT) and...
Mountain Sports, Inc., is a retailer that has engaged you to assist in the preparation of its financial statements at December 31, 2021. Following are the correct adjusted account balances, in...
(a) sint 1-cost (b) Please note each question has 4 options: (a), (b), (c) and (d). 1. Given x = t - sint and y = 1 - cost, then dy 1-cost t-sint = 1-cost sint sint cost-1 2. Given sin x cos y - 2 =...
Sometimes I forget a few items when I leave the house in the morning. For example, here are probabilities that I forget various pieces of footwear: left sock 0.2 right sock 0.1 left shoe 0.1 right...
A dielectric sphere 1 = 2 0 is buried in a medium with 2 = 6 0 . Given that E 2 = 10 sin a r + 5cos a in the medium, calculate E 1 and D 1 in the dielectric sphere.
3.16. For a system with non-identical service rates (see Sect. 3.5) and a limit of N jobs in the system (Eq. 3.13), obtain an expression for the mean service time per job, E[Ts], as a function of the...
Consider the circuit-switched network in Figure 1.13. Recall that there are 4 circuits on each link. Label the four switches A, B, C, and D, going in the clockwise direction. a. What is the maximum...
List the available residential access technologies in your city. For each type of access, provide the advertised downstream rate, upstream rate, and monthly price.
What are some of the physical media that Ethernet can run over?
As a Financial Analyst in the Finance Department of Zeta Auto Corporation they are seeking to expand production. The CFO asks you to help decide whether the firm should set up a new plant to...
Chapter 4 When an Auditor finds misstatements in entities financial statements which may be the result of fraudulent act, what should be the role of an auditor under that situation? (2 Points)
Suppose the following input prices are provided for each year: Required: $

What is a surrogate key? What are its advantages

Question:

Step by Step Answer:

A surrogate key is a unique DBMSsupplied identifier used as ...View the full answer

Database Processing Fundamentals, Design, and Implementation

Students also viewed these Computer science questions