Index structure for the fact table of a star-join schema and template query processing

Autor:	Anna Rozeva
Rok vydání:	2003
Předmět:	Query expansion Web query classification View Computer science InformationSystems_DATABASEMANAGEMENT Online aggregation Sargable Fact table Data mining Query optimization Query language computer.software_genre computer
Zdroj:	Proceedings of the 4th international conference conference on Computer systems and technologies e-Learning - CompSysTech '03.
Popis:	Star-join is a database scheme designed for the purpose of data warehousing. A typical query on a star-join scheme as well as an algorithm for its processing has been examined. An index structure for the star-join fact table has been proposed with the aim of facilitating template query processing. A multilevel index for the fact table's composite key has been built having time_key as a top'level. Stream processing technique has been implemented for resolving query's application and join constraints as well as the aggregation step of the query processing algorithm.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::968492e893cf83c30a4385a3978c43f0 https://doi.org/10.1145/973620.973646 Zobrazit plný text záznamu