Database management system and method including a query...

Details Database management system and method including a query... Database management system and method including a query...

2006-07-21

2010-11-02

Vital, Pierre M (Department: 2156)

Data processing: database and file management or data structures

Database and file access

Query optimization

C707S764000, C707S718000

Reexamination Certificate

active

07827167

ABSTRACT:
A database management system has a query interface for receiving a query and a query executor for executing the received query. The query executor dynamically generates a task, and executes a plurality of tasks in parallel. In execution of each task, each time data is required to be read from a database, the query executor generates a task for acquiring the data, and in execution of the generated task, issues a data read request for reading the data from the database, to thereby shorten a time taken to execute each task.

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patent: 2005/0131893 (2005-06-01), Von Glan
patent: 2006/0218118 (2006-09-01), Gupta

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