Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9781337627900
Author: Carlos Coronel, Steven Morris
Publisher: Cengage Learning
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Chapter 10, Problem 4P
Program Plan Intro
Lock:
Lock is the process that ensures the unique use of data item for particular transaction. If the data item is locked by one transaction, the other transactions cannot use the data item until the first transaction unlocks the data item.
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Using a specific example (different from what the textbook discusses), explain the use of binary and shared/exclusive locks in a DBMS (in your own words).
Explain the benefits of marking transaction boundaries, declaring lock characteristics, and letting a DBMS place locks.
Explain the various types of key in DBMS with certain example,
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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- In a rollforward, the DBMS uses the log to undo any changes made to the database during a certain period. (515)arrow_forwardOne way to secure a database is to allow only administrators to have access to create and delete tables. (513)arrow_forwardHow can the key and foreign key constraints be enforced by the DBMS?arrow_forward
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