Database system and a method of data retrieval from the system
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United States of America Patent
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Apr 26, 2011
Grant Date -
Jan 15, 2004
app pub date -
Jun 26, 2003
filing date -
Nov 19, 1997
priority date (Note) -
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status (Latency Note)
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Abstract
Metadata pertaining to real data stored in at least one database (DB) are collected and managed at a single meta DB server, and metadata that match a retrieval request are extracted by search of the meta DB server. Even when a plurality of DBs and DB servers for managing DBs are present on a network, all metadata that match the retrieval request can be extracted independently of the DBs that the metadata pertain to. Hence, all data that match a retrieval request can be obtained from a single server, independently of the actual locations of the distributed DBs and DB servers.
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