Managing large quantity of structured data
Efficient retrieval and modification: query processing and optimization
Sharing data, multiple users use and manipulate data
Controlling the access to data: maintaining the data integrity
The problem of keeping a transaction atomic: successful or failed
Log of database activity: use the log to undo a failed transaction.
More problems: when to write the log, failure of the recovery system executing the log.
Content-independent and content-dependent access control
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All of our data is intelligently refreshed at regular intervals to ensure that you always have access to the latest data.
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