HiLog as a platform for database languages
Proceedings of the second international workshop on Database programming languages
Low complexity aggregation in GraphLog and Datalog
ICDT '90 Proceedings of the third international conference on database theory on Database theory
Research problems in data warehousing
CIKM '95 Proceedings of the fourth international conference on Information and knowledge management
Proceedings of the 2nd ACM international workshop on Data warehousing and OLAP
Equivalence of Relational Algebra and Relational Calculus Query Languages Having Aggregate Functions
Journal of the ACM (JACM)
The TSQL2 Temporal Query Language
The TSQL2 Temporal Query Language
Foundations of Databases: The Logical Level
Foundations of Databases: The Logical Level
Maintaining Temporal Views over Non-Temporal Information Sources for Data Warehousing
EDBT '98 Proceedings of the 6th International Conference on Extending Database Technology: Advances in Database Technology
Point-Based Temporal Extension of Temporal SQL
DOOD '97 Proceedings of the 5th International Conference on Deductive and Object-Oriented Databases
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
On the Power of Aggregation in Relational Query Languages
DBLP-6 Proceedings of the 6th International Workshop on Database Programming Languages
A Temporal Query Language for OLAP: Implementation and a Case Study
DBPL '01 Revised Papers from the 8th International Workshop on Database Programming Languages
Multidimensional Data Modeling for Complex Data
ICDE '99 Proceedings of the 15th International Conference on Data Engineering
Maintaining Data Cubes under Dimension Updates
ICDE '99 Proceedings of the 15th International Conference on Data Engineering
A conceptual solution for representing time in data warehouse dimensions
APCCM '06 Proceedings of the 3rd Asia-Pacific conference on Conceptual modelling - Volume 53
Data & Knowledge Engineering
A web-based architecture for Temporal OLAP
International Journal of Web Engineering and Technology
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In spite of the obvious importance of time in data warehousing and OLAP, current commercial systems do not support tracking the history of a data warehouse, either at the schema or instance level. In this chapter we address this issue, introducing the Temporal Multidimensional Model and a query language, denoted TOLAP, allowing expressing temporal OLAP queries at a high level of abstraction. Further, we show that previous work in temporal databases needs to be extended in order to handle evolution and versioning in OLAP. Finally, we present an implementation, along with preliminary experimental results.