Data processing: database and file management or data structures – Database design – Data structure types
Patent
1998-11-16
2000-08-22
Homere, Jean R.
Data processing: database and file management or data structures
Database design
Data structure types
707 3, 709213, 709300, 710100, G06F 15163
Patent
active
061086630
ABSTRACT:
A database co-processor for efficient sequential data retrieval from a relational database is provided which is adapted for connection to a host system via a two-way bus network. The database co-processor includes an interface unit connected to receive and transmit data over the two-way bus network, and a database engine connected to the interface unit by input and output buses. The database engine includes a relevant field selection unit for storing selection criteria relevant to a database query raised by the host system processor. A comparator, which is incorporated into the database engine, compares input candidate data received on the input bus in accordance with the selection criteria and produces a result. The database engine further includes memory for the storage of output candidate data received on the input bus. Additionally, the database engine includes a processor for transmitting on the output bus at least a part of (for example, pointers to) the output candidate data in response to the results from the comparator. The co-processor is designed to enable the circuitry to be manufactured as a single application-specific integrated circuit device.
REFERENCES:
patent: 4876643 (1989-10-01), McNeill et al.
patent: 5263156 (1993-11-01), Bowen et al.
patent: 5857183 (1999-01-01), Kableshov
Compaq Computer Corporation
Homere Jean R.
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