Methods and apparatus for optimizing undo log usage

By ensuring that sufficient information from the buffers is maintained so that all changes of uncommitted transactions can be recreated, the storage of the undo buffers into undo logs can be minimized. Further efficiencies may be maintained by keeping a count of actions in a transaction as the actio...

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Bibliographic Details
Main Authors LOMET, DAVID B, JOSHI, ASHOK M, SPIRO, PETER M, RAGHAVAN, ANANTH, RENGARAJAN, TIRUMANJANAM K
Format Patent
LanguageEnglish
French
German
Published 08.01.1992
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:By ensuring that sufficient information from the buffers is maintained so that all changes of uncommitted transactions can be recreated, the storage of the undo buffers into undo logs can be minimized. Further efficiencies may be maintained by keeping a count of actions in a transaction as the actions are undone.
Bibliography:Application Number: EP19910305228