What is the lossless (or nonadditive) join property of a decomposition? Why is it important?

Question:

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

Step by Step Answer:

Related Book For book-img-for-question

Fundamentals Of Database Systems

ISBN: 9780133970777

7th Edition

Authors: Ramez Elmasri, Shamkant Navathe

See More Books

Question Posted: Nov 09, 2021 01:48 AM

See More Questions

Why is it important to distinguish between a property settlement and alimony?
Why are property rights so important in creating wealth?
Why do nations seek to join or form economic blocs? What are the advantages of such arrangements?
1. Conduct a SWOT analysis for HHI's proposed electronic commerce Web site. You can use the information in the case narrative, your personal knowledge of the retail hardware industry, and information...
Make a rank-order transformation for the scores in problems (a) 2a. (b) 2b.
Journalize the following transactions for the Jamin Jimmys music store. a. Purchased $8,900 of merchandise on account, terms 3/15, n/30, FOB shipping point. b. Paid $180 to the freight company for...
Explain how a payroll system that is properly designed and operated tends to ensure that (a) wages paid are based on hours actually worked and (b) payroll checks are not issued to fictitious...
Bacrometer, Inc., makes part no. 566 on one of its production lines. Each month Bacrometer makes 5,000 of part no. 566 at a variable cost of $2 per part. The monthly fixed costs for the production...
See image
The Cinnamon case: Sales negotiations (Role Play) - (B) The buyer You are the owner of Offshoot Intermediaries Limited, a family-run enterprise that offers various drug formulations and baby food...
Between the properties of dependency preservation and losslessness, which one must definitely be satisfied? Why?
Why can we not guarantee that BCNF relation schemas will be produced by dependency-preserving decompositions of non-BCNF relation schemas? Give a counterexample to illustrate this point.
Refer to the Real Estate DataSaskatoon online, which reports information on home listings. a. Compute the mean and standard deviation of the distribution of the list prices for the homes. Assume this...
Identify a weakness of your own that might affect your ability to lead change effectively.
What makes an ability (or set of abilities) a core competency? Pick a company you are familiar with (I've picked Apple Company) . Can you identify some of its core competencies What methods do you...
What are the key standards and frameworks commonly used by IS auditors during the IS audit process, and how do these standards contribute to the effectiveness and reliability of IS audit activities?...
What is the definition of a project risk? What is risk threat and Risk Opportunity? What are the responsibilities of the risk or opportunity owner? What alternatives are there to managing "excessive"...
6.1. Determine the transfer function H(s)/Q(s) for the liquid-level system shown in Fig. P61. Resistances R1 and R2 are linear. The flow rate from tank 3 is maintained constant at b by means of a...
Using the information in E6-10, prepare journal entries to record the transactions, assuming Solitare records discounts using the gross method in a perpetual inventory system. Data from E6-10: During...
You are interested in investing and are considering a portfolio comprised of the following two stocks. Their estimated returns under varying market conditions are provided: (note: it is difficult to...
Give Java code for performing add(e) and remove(i) methods for the Scoreboard class, as in Code Fragments 3.3 and 3.4, except this time, dontmaintain the game entries in order. Assume that we still...
Suppose you are given an array, A, containing 100 integers that were generated using the method r.nextInt(10), where r is an object of type java.util.Random. Let x denote the product of the integers...
Suppose you are designing a multiplayer game that has n 1000 players, numbered 1 to n, interacting in an enchanted forest. The winner of this game is the first player who can meet all the other...
Due to the relationship of financial statements, the statement of stockholders' equity links the income statement to the balance sheet. True or False?
Troy Engines, Limited, manufactures a variety of engines for use in heavy equipment. The company has always produced all of the necessary parts for its engines, including all of the carburetors. An...
Trey is single and has no qualifying child. His adjusted gross income is $12,355. In order to claim the Earned Income Tax Credit, he must meet which of the following requirements? He cannot be the...

What is the lossless (or nonadditive) join property of a decomposition? Why is it important?

Question:

Step by Step Answer:

This property ensures that no spurious tuples are generated ...View the full answer

Fundamentals Of Database Systems

Students also viewed these Computer science questions