Database Reference
In-Depth Information
11
Backup & Recovery
In this chapter, we will cover the following:
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Understanding and controlling crash recovery
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Planning backups
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Hot logical backup of one database
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Hot logical backup of all databases
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Hot logical backup of all tables in a tablespace
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Backup of database object definitions
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Standalone hot physical database backup
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Hot physical backup & Continuous Archiving
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Recovery of all databases
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Recovery to a point in time
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Recovery of a dropped/damaged table
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Recovery of a dropped/damaged database
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Recovery of a dropped/damaged tablespace
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Improving performance of backup/recovery
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Incremental/Differential backup and restore
Introduction
Most people admit that backups are essential, though they also devote only a very small
amount of time to thinking about the topic.
The first recipe is about understanding and controlling crash recovery. We need to understand
what happens if the database server crashes, so we can understand when we might need
to recover.
