发明名称 |
Processor for sequential data retrieval from a relational database |
摘要 |
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. The database co-processor includes an interface unit connected to receive and transmit data over the two-way bus and a database engine connected to the interface unit by input and output bus means. The database engine includes a relevant field selection unit for storing selection criteria relevant to a database query raised by the 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 a storage medium 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 result from the comparison means. The co-processor is designed to enable the circuitry to be manufactured as a single application-specific integrated circuit device.
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申请公布号 |
US5857183(A) |
申请公布日期 |
1999.01.05 |
申请号 |
US19970850530 |
申请日期 |
1997.05.02 |
申请人 |
DIGITAL EQUIPMENT CORPORATION |
发明人 |
KABLESHKOV, STOIAN |
分类号 |
G06F9/38;G06F15/163;G06F17/30;(IPC1-7):G06F17/30 |
主分类号 |
G06F9/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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