Applying a database transaction log record directly to a database table container
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United States of America Patent
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Nov 7, 2017
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N/A
app pub date -
Nov 25, 2014
filing date -
Nov 25, 2014
priority date (Note) -
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Abstract
Disclosed herein are system, method, and computer program product embodiments for directly restoring a database from a log volume. An embodiment operates by reading one or more database transaction log records from a log volume. The embodiment then loads from a database table persistent storage one or more pages containing rows in the database table that will be read from or written to by the one or more database transaction log records. The embodiment then loads a dictionary for each column associated with the one or more database transaction log records. The embodiment then applies the one or more database transaction log records directly into the one or more loaded pages and the one or more dictionaries. Each dictionary and page modified in memory is then written to the database table persistent storage when a savepoint operation is performed.
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