The Generalized Pre-Grouping Transformation: Aggregate-Query Optimization in the Presence of Dependencies

Tsois, A; Sellis, T

dc.contributor.author	Tsois, A	en
dc.contributor.author	Sellis, T	en
dc.date.accessioned	2014-03-01T02:49:21Z
dc.date.available	2014-03-01T02:49:21Z
dc.date.issued	2003	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34542
dc.relation.uri	http://www.vldb.org/conf/2003/papers/S20P01.pdf	en
dc.relation.uri	http://www.informatik.uni-trier.de/~ley/db/conf/vldb/vldb2003.html#TsoisS03	en
dc.relation.uri	http://www.dbnet.ece.ntua.gr/pubs/uploads/TR-2003-4.pdf	en
dc.relation.uri	http://wwwdb.informatik.uni-rostock.de/Archiv/vldb2003/papers/S20P01.pdf	en
dc.subject	Access Method	en
dc.subject	Data Warehouse	en
dc.subject	Optimization Technique	en
dc.subject	Query Optimization	en
dc.subject	Similarity Transformation	en
dc.title	The Generalized Pre-Grouping Transformation: Aggregate-Query Optimization in the Presence of Dependencies	en
heal.type	conferenceItem	en
heal.publicationDate	2003	en
heal.abstract	One of the recently proposed techniques for the efficient evaluation of OLAP aggregate queries is the usage of clustering access methods. These methods store the fact table of a data warehouse clustered according to the dimension hierarchies using special attributes called hierarchical surrogate keys. In the presence of these access methods new processing and optimization techniques have been recently proposed.	en
heal.journalName	Very Large Data Bases	en