Contents of Report

[Data of Report]

Report Number:: TR0182
Date of Registration:: 1986.06
English Title:: Parallel Contorol Techiniques for Dedicated Relational Database Engines
Japanese Title:: ***
English Author:: H.Itoh,M.Abe,C.Sakama,Y.Mitomo
Japanese:: ***
Name of Organization to which author belongs:: ICOT,ICOT,ICOT,Japan System Corp.
PDF:: tr0182.pdf

	Abstract	.... 2
1	Introduction	.... 2
2	A Dedicated Engine for Relational Database Operations	.... 3
3	Relational Algebra Processing Techiniques	.... 5
3.1	Join Operation	.... 5
3.2	Selection Operation	.... 6
4	Mass Data Processing Techiniques	.... 6
4.1	Sort Operation for Mass Data	.... 6
4.2	Join Operation for Mass Data	.... 7
4.3	Unit Performance	.... 10
5	Data Division Relational Alogebra Processing Techiniques	.... 11
5.1	Data Operation Sort Operation	.... 11
5.2	Data Division Join Operation	.... 12
5.3	Data Division Subcommand Tree	.... 12
6	Relational Database Machine Model	.... 13
6.1	Relational Database Machine Control Model	.... 13
6.2	Engine Parallel Contorol Strategy	.... 15
6.3	Staging Timing	.... 16
6.4	Objecting Functions	.... 16
7	Evaluations and Considerations	.... 16
7.1	Multiple-Engine Effect	.... 17
7.2	Simulation Analysis	.... 18
7.3	Observations	.... 19
8	Conclusion	.... 22
	Acknowledgements	.... 22
	References	.... 22
	End	.... 23

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