ACM Transactions on Database Systems (TODS)
Experimenting with temporal relational databases
CIKM '95 Proceedings of the fourth international conference on Information and knowledge management
An overview of data warehousing and OLAP technology
ACM SIGMOD Record
On-line warehouse view maintenance
SIGMOD '97 Proceedings of the 1997 ACM SIGMOD international conference on Management of data
Management of heterogeneous and autonomous database systems
Management of heterogeneous and autonomous database systems
Materialized views: techniques, implementations, and applications
Materialized views: techniques, implementations, and applications
Proceedings of the 2nd ACM international workshop on Data warehousing and OLAP
Maintaining data warehouses over changing information sources
Communications of the ACM
A framework for programming multiversion databases
Data & Knowledge Engineering
Efficiently synchronizing multidimensional schema data
Proceedings of the 4th ACM international workshop on Data warehousing and OLAP
The TSQL2 Temporal Query Language
The TSQL2 Temporal Query Language
Case Method: Entity Relationship Modelling
Case Method: Entity Relationship Modelling
Interconnecting Heterogeneous Information Systems
Interconnecting Heterogeneous Information Systems
Temporal Databases: Research and Practice
Temporal Databases: Research and Practice
Fundamentals of Data Warehouses
Fundamentals of Data Warehouses
A multidimensional and multiversion structure for OLAP applications
Proceedings of the 5th ACM international workshop on Data Warehousing and OLAP
Proceedings of the Seventh International Conference on Data Engineering
Efficient Organization of Large Multidimensional Arrays
Proceedings of the Tenth International Conference on Data Engineering
Don't Scrap It, Wrap It! A Wrapper Architecture for Legacy Data Sources
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
Versions of Schema for Object-Oriented Databases
VLDB '88 Proceedings of the 14th International Conference on Very Large Data Bases
Consistency of Versions in Object-Oriented Databases
VLDB '90 Proceedings of the 16th International Conference on Very Large Data Bases
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Hypothetical Queries in an OLAP Environment
VLDB '00 Proceedings of the 26th International Conference on Very Large Data Bases
Transaction Timestamping in (Temporal) Databases
Proceedings of the 27th International Conference on Very Large Data Bases
A Foundation for Multi-dimensional Databases
VLDB '97 Proceedings of the 23rd International Conference on Very Large Data Bases
Schema Evolution in Heterogeneous Database Architectures, A Schema Transformation Approach
CAiSE '02 Proceedings of the 14th International Conference on Advanced Information Systems Engineering
The COMET Metamodel for Temporal Data Warehouses
CAiSE '02 Proceedings of the 14th International Conference on Advanced Information Systems Engineering
Consistency in Data Warehouse Dimensions
IDEAS '02 Proceedings of the 2002 International Symposium on Database Engineering & Applications
A Transactional Model for Data Warehouse Maintenance
ER '02 Proceedings of the 21st International Conference on Conceptual Modeling
VQL: A Query Language for Multiversion Databases
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
View Adaptation in Data Warehousing Systems
DEXA '98 Proceedings of the 9th International Conference on Database and Expert Systems Applications
Concurrent Warehouse Maintenance Without Compromising Session Consistency
DEXA '98 Proceedings of the 9th International Conference on Database and Expert Systems Applications
Maintaining Data Cubes under Dimension Updates
ICDE '99 Proceedings of the 15th International Conference on Data Engineering
Optimization of Hypothetical Queries in an OLAP Environment
ICDE '00 Proceedings of the 16th International Conference on Data Engineering
Concurrent Maintenance of Views Using Multiple Versions
IDEAS '99 Proceedings of the 1999 International Symposium on Database Engineering & Applications
Creation and management of versions in multiversion data warehouse
Proceedings of the 2004 ACM symposium on Applied computing
Detection and Correction of Conflicting Source Updates for View Maintenance
ICDE '04 Proceedings of the 20th International Conference on Data Engineering
On querying versions of multiversion data warehouse
Proceedings of the 7th ACM international workshop on Data warehousing and OLAP
A Compensation-Based Approach for View Maintenance in Distributed Environments
IEEE Transactions on Knowledge and Data Engineering
Exploiting versions for on-line data warehouse maintenance in MOLAP servers
VLDB '02 Proceedings of the 28th international conference on Very Large Data Bases
The Data Warehouse Lifecycle Toolkit
The Data Warehouse Lifecycle Toolkit
Managing and querying versions of multiversion data warehouse
EDBT'06 Proceedings of the 10th international conference on Advances in Database Technology
Metadata management in a multiversion data warehouse
OTM'05 Proceedings of the 2005 OTM Confederated international conference on On the Move to Meaningful Internet Systems: CoopIS, COA, and ODBASE - Volume Part II
Data & Knowledge Engineering
Rule-Based management of schema changes at ETL sources
ADBIS'09 Proceedings of the 13th East European conference on Advances in Databases and Information Systems
ADBIS'09 Proceedings of the 13th East European conference on Advances in Databases and Information Systems
Data structures for multiversion data warehouse
ADBIS'09 Proceedings of the 13th East European conference on Advances in Databases and Information Systems
Season queries on a temporal multidimensional model for OLAP
Mathematical and Computer Modelling: An International Journal
Searching semantic data warehouses: models, issues, architectures
Proceedings of the 2nd International Workshop on Semantic Search over the Web
Hi-index | 0.00 |
A data warehouse (DW) is a database that integrates data from external data sources (EDSs) for the purpose of advanced analysis. EDSs are production systems that often change not only their contents but also their structures. The evolution of EDSs has to be reflected in a DW that integrates the sources. Traditional DW systems offer a limited support for the evolution of their structures. Our solution to this problem is based on a multiversion data warehouse (MVDW). Such a DW is composed of the sequence of persistent versions, each of which describes a schema and data within a given time period. The management of the MVDW requires a metadata model that is much more complex than in traditional data warehouses. In our approach and prototype MVDW system, the metadata model contains data structures that support: (1) monitoring EDSs with respect to content and structural changes, (2) automatic generation of processes monitoring EDSs, (3) applying discovered EDS changes to a selected DW version, (4) describing the structure of every DW version, (5) querying multiple DW versions at the same time and presenting the results coming from multiple versions.