Question: Normalization Using Functional and Dependencies Proof Psuedotransitivity, i.e., If X Y and WY Z, then WX Z using only Armstong inference rules

Normalization Using Functional and Dependencies

Proof Psuedotransitivity, i.e., If X → Y and WY → Z, then WX → Z using only Armstong inference rules (IR 1-3).

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock

To prove pseudotransitivity which states that if X Y and WY Z then W... View full answer

blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

In Exercises 53 and 54, differentiate implicitly to find dy/dx. xy x + y = 3

Q:

Introduction This research paper mainly focuses on history of evolvement of normalization from a set of relation schemas, along with sequential normalization forms with suitable examples. This paper...

Q:

Database Functional Dependencie and Normalization Rules Prove or disprove the following inference rules for functional/multi-valued dependencies. 1. X Y and Z Y and WSZEX W 2. XY, ZY+X Z 3. XY, XY ...

Q:

Subject: Databases Question 2: Normalization Using Functional and Dependencies Proof Psuedotransitivity, i.e., If X Y and WY Z, then WX Z using only Armstong inference rules (IR 1-3).

Q:

Developments in Technology Light is incident from air on the end face of a multimode optical fibre at angle of incidence as shown below. n n 1 2 The refractive indices of the core and cladding are...

Q:

) Consider integer division of one two's-complement binary number by another. Programming languages may vary in the result when one argument is negative. What differing conventions might they be...

Q:

) Explain the collision detection mechanism applied in standard wired medium access control associated with CSMA and indicate why this might be unsuitable for wireless networks. [2 marks] (ii)...

Q:

TASK 1: MAKE UPDATES AND CORRECTIONS Based on Part 1 Comments-20 Points: 1. Update the data model: Make any required changes to your design based on the comments provided for Part 1 of the project....

Q:

s sf Define the terms opaque type and concrete type. [5 marks] The following is a shortened version of one of the definition modules described in the Modula-2 user manual: Provide a suitable...

Q:

Draw table for each part. (B) Normalize the following table to 3NF and show the results of each normal form using the "listing dependencies" notation as shown in "Listing Dependencies.docx". State...

Q:

General Paint and Cloverdale Paint normally offer the same prices. For its Spring Specials Sale, General Paint has marked down the price of outdoor latex paint by 30%. What percentage more will you...

Q:

Heather Hogan, the vice president of a local credit union, has always accepted invitations to join credit union members who own skyboxes at the local ballpark. She has never paid for the tickets and,...

Q:

You are long $ 1 , 0 0 0 of the U . S . - listed closed - end Amazonia Fund, designed to beat the local Amazonia stock market index. The Amazonia Fund trades at a 2 5 % discount to Net Asset Value (...

Q:

Sax Co. sells insurance, and it has recently become a listed company. In accordance with corporate governance guidelines, the finance director of Sax is reviewing the companys corporate governance...

Q:

1. What combination of keys will autofill highlighted cells to the right? CTRL + R (PC and Mac) CTRL + D (PC and Mac) ALT + R (PC) / Alt + R (Mac) ATL + D (PC)/ Alt + D (Mac) 2. What combination...

Q:

A shop sells products X and Y for $5 and $ 6 respectively. At the end of the month, the shop sold 800 units and the revenue is $4500. How many units sold of X and Y?

Q:

A pair of well-balanced dice are rolled, and the number on each die is noted. Determine the probability that the sum of the numbers that turn up is:(i) 7, (ii) 7 or 11, (iii) greater than 3.

Q:

a) List and briefly describe three types of Information Systems that are used in digital firms. EMIT b) Differentiate between Intranets and Extranets. Elaborate on the impact of technology on Supply...

Q:

thenFroceping Comard from ri Mumple Choice 612 The conceptual frameworks qualinative characteristic of fathlour represertation includes:Mimple CroiceNevolyity.Confirmatory value.Predictive...

Q:

What undesirable dependencies are avoided when a relation is in 3NF?

Q:

Consider the data distribution of the COMPANY database, where the fragments at sites 2 and 3 are as shown in Figure 23.3 and the fragments at site 1 are as shown in Figure 3.6. For each of the...

Q:

What is the difference between the constrained write and the unconstrained write assumptions? Which is more realistic?

Q:

To manufacture a new product, a company must immediately invest $275,000 in new equipment. At the end of Years 3 and 5, there will have to be a major overhaul of the equipment at a cost of $40,000 on...

Q:

The development of a new product will require the expenditure of $150,000 at the beginning of each of the next three years. When the product reaches the market at the beginning of Year 4, it is...

Q:

The introduction of a new product will require an initial investment of $400,000. The annual profit expected from the new product is forecast to be $100,000 for Years 1 to 3, $70,000 for Years 4 to...