System and method for maintaining and recovering data consistency across multiple pages
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United States of America Patent
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Apr 13, 2004
Grant Date -
N/A
app pub date -
Dec 5, 2000
filing date -
Dec 5, 2000
priority date (Note) -
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Abstract
The present invention provides a system and method that facilitates data consistency maintenance between two segments of memory. A data consistency maintenance and recovery system and method of the present invention uses a dual page configuration and locking process to store and track data. A primary page is used as the primary data storage location and a mirror page operates as a copy of the primary page, except during certain stages of data manipulation operations. In one embodiment the present invention facilitates consistency maintenance during a write operation to a database. The present invention also facilitates data recovery following a system or process crash.
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