16. Database Backup and Recovery
Things break. When a new database is created or a new application goes online, everything is fresh and new—and running as designed. But the environment changes over time. New hardware and software are added, along with more users, more data, more requirements—more, more, more. Systems wear down as they are taxed on a daily basis to deliver service.
The DBA must be prepared for situations where a failure impacts the availability, integrity, or usability of a database. Reacting to failures and service disruptions is a key component of the DBA’s job. The ability of the DBA to react accordingly depends directly on having a well-planned approach to database backup and recovery.
Reacting to failures and service disruptions ...
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