Computer program product and program storage device for improving data recovery performance
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Oct 1, 1996
Issued Date -
N/A
app pub date -
Jun 7, 1995
filing date -
Mar 15, 1993
priority date (Note) -
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status (Latency Note)
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Abstract
A system and method are provided for recovering a computerized database. During transaction processing of a database, at least one log range is tracked comprising update transaction log records. The log range has a begin value and an end value. The begin value corresponds to a log RBA location of a first access of the database by an updating transaction. The end value corresponds to a log RBA location at a commit or abort of a last updating transaction. The end value corresponds to a point when the database is designated as being read only (called pseudo open). During recovery of the database, the update transaction log records in the log range are applied to a version of the database stored in non-volatile memory.
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