Method of retrieving database

Details Method of retrieving database Method of retrieving database

1997-03-13

2000-01-11

Kulik, Paul V.

Data processing: database and file management or data structures

Database design

Data structure types

707 2, 707 3, G06F 1730

Patent

active

060146559

ABSTRACT:
A method, system and computer program for picking up and simultaneously executing common processings among a plurality of retrieval processings present in a series of queries so as to retrieve data from a database. The invention also provides a method, system and computer program for performing a query compiling. The invention performs a common scanning processing of data in the database while performing a judging operation according to retrieval conditions included in the retrieval processings of a query. Data judged to satisfy the retrieval conditions are set in output buffers and are transferred to the next processing nodes. Query-compiling is performed by detecting common processings from a query execution tree and transforming the common processings into a common scanning processing.

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