EPACK DATABASE SYSTEMS WITH LOOSELEAF
13th Edition
ISBN: 9780357475171
Author: Coronel
Publisher: CENGAGE L
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Textbook Question
Chapter 5, Problem 9RQ
According to the data model, is it required that every entity instance in the PRODUCT table be associated with an entity instance in the CD table? Why, or why not?
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5. Here is a tree corresponding to T(64) for an unknown recurrence relation:
32 + lg 64
8+ lg 16
2+ lg 4
2+lg4
2+lg4
8+ lg 16
2+lg4
7
7
7
7
7
7
7
7
Fill in the details for the corresponding recurrence relation:
T(n) =
T(n/4)+
T(1)=
Put scratch work below. Scratch work is not graded but may be used for regrade
partial credit.
Top screenshot is question, the rest are examples and explinations.
Activity Time (days) Predecessors
Earliest Expected
Completion Time
(TE)
Latest Expected
Completion Time
(TE)
1
4
2
5
1
3456782222
6
1
7
1
4
4
6
2,3
5
3
5
5,7
9
4
7
10
3
6,9
11
5
8,9,10
12
4
11
Slack
Critical Path?
Yes or No
Chapter 5 Solutions
EPACK DATABASE SYSTEMS WITH LOOSELEAF
Ch. 5 - Prob. 1RQCh. 5 - What kinds of data would you store in an entity...Ch. 5 - Prob. 3RQCh. 5 - What is a subtype discriminator? Give an example...Ch. 5 - Prob. 5RQCh. 5 - What is a disjoint subtype? Give an example.Ch. 5 - What is the difference between partial...Ch. 5 - Prob. 8RQCh. 5 - According to the data model, is it required that...Ch. 5 - Prob. 10RQ
Ch. 5 - Prob. 11RQCh. 5 - Prob. 12RQCh. 5 - Prob. 13RQCh. 5 - Prob. 14RQCh. 5 - When implementing a 1:1 relationship, where should...Ch. 5 - What is time-variant data, and how would you deal...Ch. 5 - Prob. 17RQCh. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - Prob. 3PCh. 5 - Prob. 4PCh. 5 - Prob. 5PCh. 5 - Prob. 6PCh. 5 - Prob. 7PCh. 5 - Prob. 8CCh. 5 - Prob. 9CCh. 5 - Prob. 10C
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Enhanced Entity Relationship Model; Author: Data Science Center;https://www.youtube.com/watch?v=ocQUtXPumdQ;License: Standard YouTube License, CC-BY