A New Approach For Calculating Average Value (including null) Without Aggregate Function

A New Approach For Calculating Average Value (including null) Without Aggregate Function

Article ID

M626B

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A New Approach For Calculating Average Value (including null) Without Aggregate Function

Mridul Kanti Das Dhaka University of Engineering & Technology

Goutam Biswas

Md. Masudur Rahman

Dr. Md. Nasim Akhtar

DOI

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Abstract

An evaluation of aggregate functions in relational database system considerable impact on performance in many application areas like geographic information systems and statistical and scientific databases. The problem with existing systems is inefficient execution of aggregate functions with large data volumes and lack of flexibility. It is not possible to extend the systems with new aggregate (average) functions. We show how this could be implemented into a database. We also describe how support for special kinds of aggregate queries and data structures can help in designing future high performance systems.

A New Approach For Calculating Average Value (including null) Without Aggregate Function

Authors

Mridul Kanti Das Dhaka University of Engineering & Technology

Goutam Biswas

Md. Masudur Rahman

Dr. Md. Nasim Akhtar

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How to Cite

Mridul Kanti Das. 2011. “. Global Journal of Research in Engineering – I: Numerical Methods GJRE-I Volume 11 (GJRE Volume 11 Issue I7): .

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

GJRE Volume 11 Issue I7
Pg. 1- 3

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Submission Received December 2, 2011
Accepted December 27, 2011
Published January 6, 2012

Keywords

Aggregate Function Boolean algebra NULL SQL Sub Queries

Article Matrices

Total Score: 109

Country: Bangladesh

Subject: Global Journal of Research in Engineering - I: Numerical Methods

Authors: Mridul Kanti Das, Goutam Biswas, Md. Masudur Rahman, Dr. Md. Nasim Akhtar (PhD/Dr. count: 1)

View Count (all-time): 157

Total Views (Real + Logic): 5557

Total Downloads (simulated): 2626

Publish Date: 2011 12, Wed

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Total Views: 5557

Total Downloads: 2626

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