Database system and a method of data retrieval from the system

Details Database system and a method of data retrieval from the system Database system and a method of data retrieval from the system

2011-04-26

2011-04-26

Lin, Shew-Fen (Department: 2166)

Data processing: database and file management or data structures

Database and file access

Record, file, and data search and comparisons

C707S802000, C709S202000

Reexamination Certificate

active

07933920

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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