DATABASE SYSTEMS-MINDTAPV2.0
13th Edition
ISBN: 9780357427873
Author: Coronel
Publisher: CENGAGE L
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Chapter 10, Problem 4RQ
Explanation of Solution
List of transaction properties:
The transaction process has the list of properties in each individual transaction. The transaction must display these properties for consistent state. They are:
- Atomicity
- Consistency
- Isolation
- Durability
These above four transactions are referred as ACID test. The other additional transaction property is “Serializability”.
Explanation of transaction properties:
Atomicity:
- This property requires all part of the transaction (SQL commands) must be completed. Otherwise, the transaction is aborted. \
- For example: if the transaction T2 has three SQL commands, all three commands must successfully complete in the transaction. If not it is considered as inconsistent state. Hence, the atomicity property ensures the consistent state of the transaction.
Consistency:
- The property indicates the permanence of
database consistency. If the transaction is completed, the database will move one consistent state to another consistent state.
Isolation:
- This property is used for database transaction and the data item is accessed but one transaction cannot be accessed by any other transactions until the first one ends...
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7. Character AnalysisIf you have downloaded the source code you will find a file named text.txt in the Chapter 08 folder. Write a program that reads the file’s contents and determines the following:
The number of uppercase letters in the file
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Provide the full blue terminal commands & output and other things that are useful
Homework
You have the row vector (A) that has values from (-100 to 100),
write MATLAB codes to:
(1) Interchange the first 10 elements with last ten elements.
(2) Replace the elements at indices (93,9,17,50) of A with 99.
(3) Return the second element and the element before the last
of A as a column vector (C1).
(4) Extract the first five elements and the last five elements of A
and append them as a row vector (R).
(5) Set the elements of A with odd indices to zeros(0).
Chapter 10 Solutions
DATABASE SYSTEMS-MINDTAPV2.0
Ch. 10 - Prob. 1RQCh. 10 - Prob. 2RQCh. 10 - Prob. 3RQCh. 10 - Prob. 4RQCh. 10 - Prob. 5RQCh. 10 - Prob. 6RQCh. 10 - Prob. 7RQCh. 10 - Prob. 8RQCh. 10 - Prob. 9RQCh. 10 - Prob. 10RQ
Ch. 10 - Prob. 11RQCh. 10 - Prob. 12RQCh. 10 - Prob. 13RQCh. 10 - Prob. 14RQCh. 10 - Prob. 15RQCh. 10 - Prob. 16RQCh. 10 - Prob. 17RQCh. 10 - Prob. 1PCh. 10 - Prob. 2PCh. 10 - Prob. 3PCh. 10 - Prob. 4PCh. 10 - Prob. 5PCh. 10 - Prob. 6PCh. 10 - Prob. 7PCh. 10 - Prob. 8PCh. 10 - Prob. 9PCh. 10 - Prob. 10PCh. 10 - Prob. 11P
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