Database system having a hierarchical network database and a cor

Details Database system having a hierarchical network database and a cor Database system having a hierarchical network database and a cor

1995-01-12

1998-06-09

Black, Thomas G.

395613, G06F 1730

Patent

active

057649782

ABSTRACT:
A database system consisting of a network database and a relational database. When a modification is made to the network database, update log data about the modification is created by an update log creating portion. An updating portion searches an address table for the storage position of an address contained in the update log data according to this data. This address storage position is correlated to the relational database. Therefore, the updating portion can locate the position of a data item on the relational database according to the discovered address storage position. The updating portion updates this data item and reflects contents of updating of the network database in the relational database.

REFERENCES:
patent: 5467471 (1995-11-01), Bader
patent: 5604898 (1997-02-01), Saijyo et al.
"SIR: A Hierarchy of Heart Attacks", Paul Litwin, Data Based Advisor, v9, n3, p. 26(2), Mar. 1991.

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