
Starting Out with Programming Logic and Design (4th Edition)
4th Edition
ISBN: 9780133985078
Author: Tony Gaddis
Publisher: PEARSON
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Chapter 6.2, Problem 6.8CP
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Boolean function:
- Many
programming languages will allow Boolean function. The Boolean function will return either true or false value. - For testing the condition the Boolean function is used and it will return either true or false to indicate whether the given condition exists.
- It is also useful for simplifying the complex conditions that are tested in repetition and decision structures...
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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 6 Solutions
Starting Out with Programming Logic and Design (4th Edition)
Chapter 6.1, Problem 6.1CPChapter 6.1, Problem 6.2CPChapter 6.1, Problem 6.3CPChapter 6.1, Problem 6.4CPChapter 6.1, Problem 6.5CPChapter 6.2, Problem 6.6CPChapter 6.2, Problem 6.7CPChapter 6.2, Problem 6.8CPChapter 6, Problem 1MCChapter 6, Problem 2MC
Chapter 6, Problem 3MCChapter 6, Problem 4MCChapter 6, Problem 5MCChapter 6, Problem 6MCChapter 6, Problem 7MCChapter 6, Problem 8MCChapter 6, Problem 9MCChapter 6, Problem 10MCChapter 6, Problem 1TFChapter 6, Problem 2TFChapter 6, Problem 3TFChapter 6, Problem 4TFChapter 6, Problem 5TFChapter 6, Problem 1SAChapter 6, Problem 2SAChapter 6, Problem 3SAChapter 6, Problem 4SAChapter 6, Problem 5SAChapter 6, Problem 6SAChapter 6, Problem 1AWChapter 6, Problem 2AWChapter 6, Problem 3AWChapter 6, Problem 4AWChapter 6, Problem 5AWChapter 6, Problem 6AWChapter 6, Problem 1DEChapter 6, Problem 2DEChapter 6, Problem 3DEChapter 6, Problem 2PEChapter 6, Problem 3PEChapter 6, Problem 4PEChapter 6, Problem 5PEChapter 6, Problem 6PEChapter 6, Problem 7PEChapter 6, Problem 8PEChapter 6, Problem 9PEChapter 6, Problem 10PEChapter 6, Problem 11PEChapter 6, Problem 12PE
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