... 100 - 499 A database view is a portion of the data structured in a way suitable to a specific on views ...
Publication - erhard - 04/17/2013 - 09:38 - 0 comments - 0 attachments
... doi:10.1016/S0169-023X(02)00207-0 Citations: ... 10 - 49 In this paper we present a formal model for the support of temporal schema versions in object-oriented ...
Publication - fgrandi - 04/17/2013 - 08:49 - 0 comments - 0 attachments
... 50 - 99 A sound and complete axiomatic model is proposed for dynamic schema evolution ... an OBS. The inference mechanism performed by the model has a proven termination. (object-oriented, Theory, TODS / VLDBJ) ...
Publication - erhard - 04/17/2013 - 08:49 - 0 comments - 0 attachments
... to support both aspects of transaction time, evolution of a database's contents and evolution of a database's schema. They define a relation's schema to be the relation's ...
Publication - erhard - 04/17/2013 - 08:27 - 0 comments - 0 attachments
... 0 Citations range: n/a Attachment Size ... 748.81 KB Given a multirelational database scheme and a relational mapping f transforming it, ...
Publication - huliganka - 04/17/2013 - 00:27 - 0 comments - 1 attachment
... Keller, A.M. Author: Keller, A Year: ...
Publication - huliganka - 04/17/2013 - 00:16 - 0 comments - 1 attachment
... range: n/a Attachment Size ... 311.36 KB Views as a means to describe parts of a given data collection play an important role in many database applications. ...
Publication - cat - 04/16/2013 - 18:16 - 0 comments - 1 attachment
... P Kosky, A Year: ... their strengths and weaknessesd develops requirements on a formal model for specifying and implementing database transformations. We ...
Publication - erhard - 04/16/2013 - 11:38 - 0 comments - 1 attachment
... J Rubio, A Zapata, M ... implies the immediate realization of modifications, is a time–consuming process. In this paper we propose a solution that is closer ...
Publication - jlloret - 04/16/2013 - 08:49 - 0 comments - 0 attachments
... Cleve, A.; Henrard, J.; Hainaut, J.-L. ... Cleve, A Henrard, J ... Database reengineering consists of deriving a new database from a legacy database and adapting the software components ...
Publication - huliganka - 04/16/2013 - 07:49 - 0 comments - 0 attachments
... 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
... J Rubio, A Zapata, M ... changes that have occurred in the conceptual schema of a database. This is specially relevant when evolution operations affect ISA ...
Publication - jlloret - 04/16/2013 - 06:05 - 0 comments - 0 attachments
