Solving implication problems in database applications
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
Implementing data cubes efficiently
SIGMOD '96 Proceedings of the 1996 ACM SIGMOD international conference on Management of data
Foundations of aggregation constraints
Theoretical Computer Science
Caching multidimensional queries using chunks
SIGMOD '98 Proceedings of the 1998 ACM SIGMOD international conference on Management of data
Common expression analysis in database applications
SIGMOD '82 Proceedings of the 1982 ACM SIGMOD international conference on Management of data
Modelling Large Scale OLAP Scenarios
EDBT '98 Proceedings of the 6th International Conference on Extending Database Technology: Advances in Database Technology
Data Cube: A Relational Aggregation Operator Generalizing Group-By, Cross-Tab, and Sub-Total
ICDE '96 Proceedings of the Twelfth International Conference on Data Engineering
VLDB '98 Proceedings of the 24rd International Conference on Very Large Data Bases
Aggregate-Query Processing in Data Warehousing Environments
VLDB '95 Proceedings of the 21th International Conference on Very Large Data Bases
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
A Model of Summary Data and its Applications in Statistical Databases
Proceedings of the 4th International Working Conference SSDBM on Statistical and Scientific Database Management
Summarizability in OLAP and Statistical Data Bases
SSDBM '97 Proceedings of the Ninth International Conference on Scientific and Statistical Database Management
Finding Your Way through Multidimensional Data Models
DEXA '98 Proceedings of the 9th International Workshop on Database and Expert Systems Applications
Management of Multidimensional Aggregates for Efficient Online Analytical Processing
IDEAS '99 Proceedings of the 1999 International Symposium on Database Engineering & Applications
Conceptual Multidimensional Data Model Based on MetaCube
ADVIS '00 Proceedings of the First International Conference on Advances in Information Systems
Supporting Hot Spots with Materialized Views
DaWaK 2000 Proceedings of the Second International Conference on Data Warehousing and Knowledge Discovery
Extended derivation cube based view materialization selection in distributed data warehouse
WAIM'05 Proceedings of the 6th international conference on Advances in Web-Age Information Management
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A common optimization technique in data warehouse environments is the use of materialized aggregates. Aggregate processing becomes complex, if partitions of aggregates or queries are materialized and reused later. Most problematic are the implication problems regarding the restriction predicates. We show that in the presence of hierarchies in a multidimensional environment an efficient algorithm can be given to construct - or to derive - an aggregate from one or more overlapping materialized aggregate partitions (set-derivability).