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Can you please explain the difference between 'recovery' and 'restore' in general and here?
A computer system, like any other device, is subject to failure from a variety of causes: disk crash, power outage, software error, a fire in the machine room, even sabotage. In any failure, information may be lost. Therefore, the database system must take actions in advance to ensure that the atomicity and durability properties of transactions, introduced in Chapter 17, are preserved. An integral part of a database system is a recovery scheme that can restore the database to the consistent state that existed before the failure.
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TFD: recovery: n.
1. The act, process, duration, or an instance of recovering.
2. A return to a normal or healthy condition.
restore: tr.v.
2. To bring back to an original or normal condition: restore a building; restored the patient to health.
They mean quite the same in the second meaning: back to an original or normal condition. Recovery refer to the "process" too, not just the action.
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This is another example of you needing to ask COMPUTER/SOFTWARE ENGINEERING folks about how these words are used as a part of their vocabulary.
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Many thanks both!!!
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