DATABASE CONCEPTS+MYITLAB
18th Edition
ISBN: 9780134821245
Author: KROENKE
Publisher: PEARSON C
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Chapter 2, Problem 2.7RQ
Explanation of Solution
File:
A group of interrelated data is called file, and it can be stored in the secondary memory.
- A file can be accessed from the secondary memory by using its name.
- The types of files can be separated based on the format.
- The format of the file can be identified by their extensions.
Record:
- Relational
database is a database, which organizes data according to the relational model as table and table consists of rows and columns.- The table is also called data file.
- Group of related row is called record which is also called database object or entity.
Field:
- Relational database is a database, which organizes data according to the relational model as table and table consists of rows and columns...
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1) Apply the Paint Blue algorithm discussed in class to the following Finite Automata.
a
a
a
b
b
a
COIS-3050H-R-W01-2025WI-COMB Formal
Languages & Automata
a
b
Show the status of the Finite Automata at the conclusion of the Paint Blue Algorithm (mark the
visited states with an X and only include edges that have not been followed).
2) Use the pumping lemma to prove the following language is nonregular:
L= {ab} = {abbb, aabbbbbb, aaabbbbbbbbb, ...}
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e CFG.
1
COIS-3050H-R-W01-2025WI-COMB Formal
anguages & Automata
Is that contain the substring aba.
(b) The language of all words that have an odd number letters and contains the string bb.
(c) The language of all words that begin with the substring ba and contains an odd number of
letters.
4) Convert the following FA into a PDA.
a
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b
a
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Chapter 2 Solutions
DATABASE CONCEPTS+MYITLAB
Ch. 2 - Prob. 2.1RQCh. 2 - Define the term entity, and give an example of an...Ch. 2 - Prob. 2.3RQCh. 2 - Prob. 2.4RQCh. 2 - Prob. 2.5RQCh. 2 - Prob. 2.6RQCh. 2 - Prob. 2.7RQCh. 2 - Prob. 2.8RQCh. 2 - Prob. 2.9RQCh. 2 - Define the term unique key and give an example.
Ch. 2 - Prob. 2.11RQCh. 2 - Prob. 2.12RQCh. 2 - Define the terms candidate key and primary key....Ch. 2 - Describe four uses of a primary key.Ch. 2 - Prob. 2.15RQCh. 2 - Prob. 2.16RQCh. 2 - Prob. 2.17RQCh. 2 - Explain the term foreign key, and give an example.Ch. 2 - Prob. 2.19RQCh. 2 - Prob. 2.20RQCh. 2 - Explain three possible interpretations of a null...Ch. 2 - Give an example of a null value (other than one...Ch. 2 - Prob. 2.23RQCh. 2 - Prob. 2.24RQCh. 2 - Prob. 2.25RQCh. 2 - Prob. 2.26RQCh. 2 - Prob. 2.27RQCh. 2 - Define the term primary key in terms of functional...Ch. 2 - Prob. 2.31RQCh. 2 - Examine the data in the Veterinary Office...Ch. 2 - Prob. 2.33RQCh. 2 - Describe a modification problem that occurs when...Ch. 2 - Prob. 2.35RQCh. 2 - Prob. 2.36RQCh. 2 - Prob. 2.37RQCh. 2 - Apply the normalization process to the Veterinary...Ch. 2 - Prob. 2.39ECh. 2 - Apply the normalization process to the Veterinary...
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