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Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482

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Chapter
Section
BuyFindarrow_forward

Database Systems: Design, Implemen...

12th Edition
Carlos Coronel + 1 other
Publisher: Cengage Learning
ISBN: 9781305627482
Chapter 10, Problem 16RQ
Textbook Problem
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What are the three types of database-critical events that can trigger the database recovery process? Give some examples for each one.

Program Plan Intro

Database recovery process:

It is a recovery process used to restores a database from inconsistent state. The functions of backup and recovery provide the automatic database backups to permanent secondary storage devices like disks and tapes.

Explanation of Solution

Database-critical events:

The database recovery process is triggered when the database causes into critical events. The critical events can be divided into three types. They are:

  • Hardware/software failures
  • Human-caused incidents
  • Natural disasters

Hardware/software failures:

  • The list of failures like hard disk failure, media failure, a bad capacitor on a motherboard, or memory bank failure are comes under hardware failure.
  • The other category of failures are overwritten of files, deletion or file lost, software errors, and application errors are comes under software failure.
  • This type of critical event is considered as common problem in database administration.

Human-caused incidents:

This type of incidents is caused by user and this type of incidents is categorized into two types. They are unintentional or intentional incidents...

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