Explain the difference between a primary key and a candidate key.

Question:

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

Step by Step Answer:

Related Book For book-img-for-question

Database Concepts

ISBN: 978-0133544626

7th edition

Authors: David M. Kroenke, David J. Auer

See More Books

Question Posted: Jan 09, 2019 05:47 AM

See More Questions

What is the difference between a PRIMARY KEY constraint and a UNIQUE constraint?
Explain the difference between a predictive control process and an empirical control process.
What is the difference between a primary index and a secondary index?
Consider the following NLP problem: Maximize 2Xi + X2 - 2X3 + 3XiX2 + 1X subject to the constraints (a) Set up and solve the model by using Solver. Use a starting value of zero for each decision...
At the end of March 2014, total owner's equity for Beaulieu Group Company was $8,050. During April, the following transactions occurred: 1. Provided services to a client and received $1,785 cash. 2....
A food distribution company ships fresh spinach from its four packing plants to large East-coast cities. The shipping costs per crate, the supply and demand are shown in the table at the bottom of...
RE FIN AN C IN G A M O RTG AG E. US E WO R SH E E T 5.4. Lily Nguyen purchased a condominium four years ago for $200,000, paying $1,250 per month on her $162,000, 8 percent, 25-year mortgage. The...
Coldplay Corporation incurred the following costs while manufacturing its product. Instructions(a) Identify each of the costs as direct materials, direct labor, manufacturing overhead, or period...
7 Curtiss Construction Company, Inc., entered into a fixed price contract with Axelrod Associates on July 1 2021, to construct a four-story office building. At that time, Curtiss estimated that it...
Mr. Tiwari a young and upcoming professional decided to open a franchised supermarket after completing his various education. After 30 years of being in operation, he became the owner and CEO of...
Give an example of a relation with a unique composite key.
Describe four uses of a primary key.
The report ?Most Licensed Drivers Age 85+: States? (bloomberg.com/graphics/best-and -worst/#most-licensed-drivers-age-85-plus-states, retrieved April 20, 2017) gives the percentage of drivers in each...
Allison, Inc., produces two products, X and Y, in a single joint process. Last month the joint costs were P75,000 when 10,000 units of Product X and 15,000 units of Product Y were produced....
8+0.5 = 4. Consider a system with a lead compensator Ge(s) = +0.13 followed by a plant G(s) = 10 Determine a value for a gain K on the error signal such that the phase margin s(s+1) of the open-loop...
Standard Normal Distribution. In Exercises 17-36, assume that a randomly selected subject is given a bone density test. Those test scores are normally distributed with a mean of 0 and a standard...
After making several improvements in the east process, you now want to put controls in place to detect new problems if they occur. To help with this, the workers collected a sample of 5 capsules each...
Help es ! Required information The box shown has cardboard sides and wood strips along the edges and from corner to corner. The strength of the box is provided primarily by the wood strips, and a...
Find the present value of each amount. $45,678.93 if interest is 7.2% compounded monthly for 11 months.
-4 1 9. Let A = Find A-1, (A") and verify that (A")= (A-1)".
Summarize the three categories of normalization theory.
What is the premise of Fagins work on DK/NF?
What normal form is concerned with multivalued dependencies?
Sweeten Company had no jobs in progress at the beginning of March and no beginning inventories. The company has two manufacturing departments --Molding and Fabrication. It started, completed, and...
Horizontal Analysis The comparative accounts payable and long-term debt balances of a company are provided below. Current Year Previous Year Accounts payable $47,286 $63,900 Long-term debt 85,492...
On January 1, Year 1, Price Company issued $140,000 of five-year, 7 percent bonds at 97. Interest is payable annually on December 31. The discount is amortized using the straight-line method. Record...

Explain the difference between a primary key and a candidate key.

Question:

Step by Step Answer:

Both are unique identifiers One is chose...View the full answer

Database Concepts

Students also viewed these Computer science questions