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pro vyhledávání: '"Michael O. Akinde"'
Autor:
Michael O. Akinde, Michael H. Böhlen
Publikováno v:
ICDE
Expressing complex OLAP queries involving nested expressions using normal group-by, aggregation, and joins can be extremely difficult. We propose a technique that translates nested query expressions into an algebra extended with a complex OLAP operat
Autor:
Michael O. Akinde, Michael H. Böhlen
Publikováno v:
Lecture Notes in Computer Science ISBN: 9783540426233
Databases in Telecommunications
Databases in Telecommunications
On-line analytical processing (OLAP) has become an increasingly important concern for telecommunications operators. Telecommunications systems generate huge amounts of data that would be beneficial to analyze using OLAP technology. Recently, Chatzian
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::099ccac194c6f06bcd94371d1aec84e7
https://doi.org/10.1007/3-540-45432-2_5
https://doi.org/10.1007/3-540-45432-2_5
Publikováno v:
Lecture Notes in Computer Science ISBN: 9783540642640
EDBT
EDBT
Data warehouses collect and maintain large amounts of data from several distributed and heterogeneous data sources. Because of security reasons, operational requirements, and technical feasibility it is often impossible for data warehouses to access
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fdfcf00ddae25935409b5afb2129085e
https://doi.org/10.1007/bfb0100992
https://doi.org/10.1007/bfb0100992