Method and apparatus for interrupting updates to a database...

Details Method and apparatus for interrupting updates to a database... Method and apparatus for interrupting updates to a database...

G - Physics

06

F

G06F 17/30 (2006.01) G06F 17/40 (2006.01)

Patent

CA 2422176

A method and system for suspending log-based updating of a database in a manner that permits its resumption without restore, to permit efficient alternation between a log-based update mode and a database access mode. Unplayed log records are protected, as re versions of database pages at a time when the log-based update was suspended. This permits log-based updating to resume where it left off. In order to ensure consistent data for access, a roll-back procedure creates consistent data pagers that are used for access, and discarded when log-based update resumes.

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