The data warehouse toolkit: practical techniques for building dimensional data warehouses
The data warehouse toolkit: practical techniques for building dimensional data warehouses
Proceedings of the eighth international conference on Information and knowledge management
A multidimensional and multiversion structure for OLAP applications
Proceedings of the 5th ACM international workshop on Data Warehousing and OLAP
A Formal Temporal Object-Oriented Data Model
EDBT '96 Proceedings of the 5th International Conference on Extending Database Technology: Advances in Database Technology
On Schema Evolution in Multidimensional Databases
DaWaK '99 Proceedings of the First International Conference on Data Warehousing and Knowledge Discovery
Changes of Dimension Data in Temporal Data Warehouses
DaWaK '01 Proceedings of the Third International Conference on Data Warehousing and Knowledge Discovery
Supporting Dimension Updates in an OLAP Server
CAiSE '02 Proceedings of the 14th International Conference on Advanced Information Systems Engineering
A Temporal Query Language for OLAP: Implementation and a Case Study
DBPL '01 Revised Papers from the 8th International Workshop on Database Programming Languages
Conceptual Design of Data Warehouses from E/R Schema
HICSS '98 Proceedings of the Thirty-First Annual Hawaii International Conference on System Sciences-Volume 7 - Volume 7
Maintaining Data Cubes under Dimension Updates
ICDE '99 Proceedings of the 15th International Conference on Data Engineering
Creation and management of versions in multiversion data warehouse
Proceedings of the 2004 ACM symposium on Applied computing
On querying versions of multiversion data warehouse
Proceedings of the 7th ACM international workshop on Data warehousing and OLAP
Graph-based modeling of ETL activities with multi-level transformations and updates
DaWaK'05 Proceedings of the 7th international conference on Data Warehousing and Knowledge Discovery
Data & Knowledge Engineering
Multiversion join index for multiversion data warehouse
Information and Software Technology
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This paper addresses the problem of how to specify changes in multidimensional databases. These changes may be motivated by evolutions of user requirements as well as changes of operational sources. The multiversion-based multidimensional model we provide supports both data and structure changes. The approach consists in storing star versions according to relevant structure changes whereas data changes are recorded through dimension instances and fact instances in a star version. The model is able to integrate mapping functions to populate multiversion-based multidimensional databases.