Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
5th Edition
ISBN: 9780134801407
Author: GADDIS
Publisher: PEARSON
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Chapter 1, Problem 1SA
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Importance of CPU (Central Processing Unit):
- CPU is a part of the computer which actually runs the program.
- It is the most important component because without CPU, we cannot run any software.
- But when a task is performed, we simply say that the code or the program is running or executing.
- In olden days, they were the huge devices which were made up of electrical and mechanical components like vacuum tubes and switches.
- ENIAC (Electronic Numerical Integrator and Calculator) is considered as the world’s first programmable electronic computer which is 8 feet tall and 100 feet long...
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Students have asked these similar questions
Given a relation schema R = (A, B, C, D, E,G) with a set of functional dependencies
F {ABCD
BC → DE
B→ D
D→ A}.
(a) Show that R is not in BCNF using the functional dependency A → BCD.
(b) Show that AG is a superkey for R
(c) Compute a canonical cover Fc for the set of functional dependencies F. Show your work.
(d) Give a 3NF decomposition of R based on the canonical cover found in (c). Show your
work.
(e) Give a BCNF decomposition of R using F. Show your work.
The following entity-relationship (ER) diagram models a database that helps car deal-
ers maintain records of customers and cars in their inventory.
Construct a relational database schema from the ER diagram. Your set of schemas should
include primary-key and foreign-key constraints and you should ensure there are no redundant
schemas.
has_model
model
modelID
name
vehicle
has_vehicle
VIN
dealer_ID
brand
name
has_available_option
has_option
has_dealer
options
options_ID
specification
dealer
dealer ID
name
customer_ID
owned_by
customer
customer ID
name
A relation schema R = (A, B, C, D, E) with a set of functional dependencies
F= {D A
CAB}
is decomposed into R₁ = (A, B, C) and R2 = (C, D, E).
(a) Is this a lossless-join decomposition? Why or why not?
(b) Is the decomposition dependency preserving? Why or why not?
Chapter 1 Solutions
Starting Out with Programming Logic and Design (5th Edition) (What's New in Computer Science)
Chapter 1.2, Problem 1.1CPChapter 1.2, Problem 1.2CPChapter 1.2, Problem 1.3CPChapter 1.2, Problem 1.4CPChapter 1.2, Problem 1.5CPChapter 1.2, Problem 1.6CPChapter 1.2, Problem 1.7CPChapter 1.2, Problem 1.8CPChapter 1.3, Problem 1.9CPChapter 1.3, Problem 1.10CP
Chapter 1.3, Problem 1.11CPChapter 1.3, Problem 1.12CPChapter 1.3, Problem 1.13CPChapter 1.3, Problem 1.14CPChapter 1.4, Problem 1.15CPChapter 1.4, Problem 1.16CPChapter 1.4, Problem 1.17CPChapter 1.4, Problem 1.18CPChapter 1.4, Problem 1.19CPChapter 1.4, Problem 1.20CPChapter 1.4, Problem 1.21CPChapter 1.4, Problem 1.22CPChapter 1.4, Problem 1.23CPChapter 1.5, Problem 1.24CPChapter 1.5, Problem 1.25CPChapter 1.5, Problem 1.26CPChapter 1, Problem 1MCChapter 1, Problem 2MCChapter 1, Problem 3MCChapter 1, Problem 4MCChapter 1, Problem 5MCChapter 1, Problem 6MCChapter 1, Problem 7MCChapter 1, Problem 8MCChapter 1, Problem 9MCChapter 1, Problem 10MCChapter 1, Problem 11MCChapter 1, Problem 12MCChapter 1, Problem 13MCChapter 1, Problem 14MCChapter 1, Problem 15MCChapter 1, Problem 16MCChapter 1, Problem 17MCChapter 1, Problem 18MCChapter 1, Problem 19MCChapter 1, Problem 20MCChapter 1, Problem 21MCChapter 1, Problem 22MCChapter 1, Problem 23MCChapter 1, Problem 24MCChapter 1, Problem 25MCChapter 1, Problem 1TFChapter 1, Problem 2TFChapter 1, Problem 3TFChapter 1, Problem 4TFChapter 1, Problem 5TFChapter 1, Problem 6TFChapter 1, Problem 7TFChapter 1, Problem 8TFChapter 1, Problem 9TFChapter 1, Problem 10TFChapter 1, Problem 1SAChapter 1, Problem 2SAChapter 1, Problem 3SAChapter 1, Problem 4SAChapter 1, Problem 5SAChapter 1, Problem 6SAChapter 1, Problem 7SAChapter 1, Problem 1EChapter 1, Problem 2EChapter 1, Problem 3EChapter 1, Problem 4E
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