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A Model for Compound Type Changes Encountered in Schema Evolution

... 420.56 KB Schema evolution is a problem that is faced by long-lived data. When a schema changes, existing persistent data can become inaccessible unless the ... the database maintainer can perform. We have developed a model of type changes involving multiple types. The model describes both type ...

Publication - erhard - 04/17/2013 - 10:05 - 0 comments - 1 attachment

Maintaining Data Warehouses over Changing Information Sources.

... Rundensteiner, Elke A.; Koeller, Andreas; Zhang, Xin ... E Koeller, A Zhang, X ...

Publication - cat - 04/17/2013 - 06:16 - 0 comments - 1 attachment

Towards quality-oriented data warehouse usage and evolution

... 0 Citations range:  n/a Attachment Size ... 479.79 KB As a decision support information system, a data warehouse must provide high level ...

Publication - cat - 04/17/2013 - 05:27 - 0 comments - 1 attachment

FIESTA: A Framework for Schema Evolution in Multidimensional Databases

... domain. Consequently, OLAP systems are represented by a multidimensional database schema to adequately reflect the application semantics. FIESTA presents a methodology for the evolution of such multidimensional schemas. Core of the ...

Publication - cat - 04/16/2013 - 18:16 - 0 comments - 1 attachment

Evolution and change in data management: issues and directions

... and completeness. In order to study this in more detail a workshop on Evolution and Change in Data Management was held in Paris in November 1999. It brought together researchers from a wide range of disciplines with a common interest in handling the fundamental ...

Publication - cat - 04/16/2013 - 11:38 - 0 comments - 1 attachment

Optimizing Performance of Schema Evolution Sequences

... More than ever before schema transformation is a prevalent problem that needs to be addressed to accomplish for example the ... Such schema transformations are typically composed of a sequence of schema evolution operations. The execution of such sequences can ...

Publication - cat - 04/16/2013 - 07:49 - 0 comments - 1 attachment

On-line Schema Update for a Telecom Database

... to block any type of transactions. We show in this paper a method to handle schema changes which is based on a transaction oriented change with the aid of triggers. The old and the new ...

Publication - cat - 04/16/2013 - 07:16 - 0 comments - 0 attachments

Efficient Maintenance of Temporal Data Warehouses

... 48.74 KB A temporal data warehouse can be defined as a set V of materialized views over non-temporal sources. We present a self-maintainable temporal data warehouse that, besides a set of temporal ...

Publication - huliganka - 04/16/2013 - 06:27 - 0 comments - 1 attachment

ROVER: A Framework for the Evolution of Relationships

... Claypool, K.T.; Rundensteiner, E.A.; Heineman, G.T. Author:  ... propose comprehensive support for relationship evolution. A complete schema evolution facility for any OODB system must provide (1) ...

Publication - cat - 04/16/2013 - 02:49 - 0 comments - 1 attachment

Handling Dynamic Schema Change in Process Models

... across cross-platform systems and for providing a global view and understanding of business process models. However, the ... of workflow processes with multiple active instances is a complex issue. In this paper, we present an analysis of workflow changes in relation to business process change, and present a classification of workflow changes that dictate the scope of the problem. ...

Publication - cat - 04/16/2013 - 01:27 - 0 comments - 0 attachments

SERFing the web: The Re-Web approach for web re-structuring

... applications with such needs. In this paper we present a database-centric approach called Re-Web that addresses this need for flexible ... and LotusXSL processor to aid the web site generation. A case study using Re-Web is also presented to illustrate the working of the ...

Publication - cat - 04/15/2013 - 22:16 - 0 comments - 1 attachment