Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 10, Problem 9P
Program Plan Intro
Pessimistic locking:
It is one of the locking methods in concurrency control. The lock exists in the transaction until the transaction gets committed or rolled back.
Two-phase locking protocol:
It defined the serializability of the transaction but not prevent deadlocks. The process of locking and unlocking can be done using two phases in this protocol. They are: Growing phase and shrinking phase.
Growing phase:
New lock can be occurred on the transaction without unlocking the data items. The data items are locked in this phase.
Shrinking phase:
This phase used to release all transaction but not provide new lock on the transaction.
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Pastner Brands is a calendar-year firm with operations in several countries. As part of its executive compensation plan, at January 1,
2024, the company issued 480,000 executive stock options permitting executives to buy 480,000 shares of Pastner stock for $38 per
share. One-fourth of the options vest in each of the next four years beginning at December 31, 2024 (graded vesting). Pastner elects to
separate the total award into four groups (or tranches) according to the year in which they vest and measures the compensation cost
for each vesting date as a separate award. The fair value of each tranche is estimated at January 1, 2024, as follows:
Vesting Date
Amount
Fair Value
Vesting
per Option:
December 31, 2024
25%
$ 3.90
December 31, 2025
25%
$ 4.40
25%
$ 4.90
25%
$ 5.40
December 31, 2026
December 31, 2027
Required:
1. Determine the compensation expense related to the options to be recorded each year 2024-2027, assuming Pastner allocates
the compensation cost for each of the four…
What is one benefit with regards to time complexity of using a Doubly Linked List as
opposed to an Array when implementing a Deque?
Chapter 10 Solutions
Database Systems: Design, Implementation, & Management
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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