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

1
Mridul Kanti Das
Mridul Kanti Das
2
Goutam Biswas
Goutam Biswas
3
Md. Masudur Rahman
Md. Masudur Rahman
4
Dr. Md. Nasim Akhtar
Dr. Md. Nasim Akhtar
1 Dhaka University of Engineering & Technology

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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.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

Mridul Kanti Das. 2011. \u201cA New Approach For Calculating Average Value (including null) Without Aggregate Function\u201d. Global Journal of Research in Engineering - I: Numerical Methods GJRE-I Volume 11 (GJRE Volume 11 Issue I7): .

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Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

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December 28, 2011

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English

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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.

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

Mridul Kanti Das
Mridul Kanti Das Dhaka University of Engineering & Technology
Goutam Biswas
Goutam Biswas
Md. Masudur Rahman
Md. Masudur Rahman
Dr. Md. Nasim Akhtar
Dr. Md. Nasim Akhtar

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