Method and apparatus for improved transaction recovery
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United States of America Patent
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Jan 30, 2001
Issued Date -
N/A
app pub date -
Aug 27, 1998
filing date -
Mar 19, 1996
priority date (Note) -
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Abstract
An approach for recovering after premature termination of a plurality of transactions involves: A) selecting a previously unselected transaction from the plurality of transactions; B) processing the selected transaction by undoing the lesser of a predetermined number of changes made by the selected transaction and all changes made by the selected transaction; and C) repeating steps A) and B) until all of the plurality of transactions have been processed. Another aspect of the approach involves: A) selecting a previously unselected transaction from the plurality of transactions, wherein the selected transaction is the previously unselected transaction from the plurality of transactions that made the fewest number of changes in the database; B) processing the selected transaction by undoing one or more changes in the database made by the selected transaction; and C) repeating steps A) and B) until all transactions from the plurality of transactions have been processed.
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