F. Grandi, F. Mandreoli, and M. R. Scalas. A Formal Model for Temporal Schema Versioning in Object-Oriented Databases. Technical Report CSITE-014-98, CSITE - CNR, November 1998. Available on ftp://csite60.deis.unibo.it/pub/report. Home/Search Document Details and Download
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This paper is cited in the following contexts:
A Generalized Modeling Framework for Schema Versioning.. - Grandi, Mandreoli, Scalas (2000) Self-citation (Grandi Mandreoli Scalas) (Correct)
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F. Grandi, F. Mandreoli, and M. R. Scalas. A Formal Model for Temporal Schema Versioning in Object-Oriented Databases. Technical Report CSITE-014-98, CSITE - CNR, November 1998. Available on ftp://csite60.deis.unibo.it/pub/report.
Towards a Model for Spatio-Temporal Schema Selection - Roddick, al. (1999) Self-citation (Grandi Mandreoli Scalas) (Correct)
No context found.
Grandi, F., Mandreoli, F. and Scalas, M.R. A Formal Model for Temporal Schema Versioning in ObjectOriented Databases. Technical Report CSITE-014-98, CSITE-CNR, Universita di Bologna, 1998.
ODMG language extensions for generalized schema versioning.. - Grandi, Mandreoli (1999) Self-citation (Grandi Mandreoli) (Correct)
.... we consider here is a general model for the management of versions which integrates the pure temporal schema versioning with the branching versioning approach [6] It has been developed in the framework of a comprehensive research project, in which the authors play an active part and to which [4 6] and the present work are all contributions. In this generalized model, the identification of a particular schema version relies on the use of a symbolic name (to denote a design alternative) and two time coordinates (to select a temporal version with respect to transaction and valid time [7] ....
....not allowed and the only way of doing it is to apply a sequence of primitive schema changes to an already existing version. In this way, we provide the system with default semantics for automatic database conversion and an automatic consistency checking associated with each schema change primitive [4]. A schema change primitive is a non decomposable operation acting on the schema. The support of a complete set of primitive changes allows the execution of any possible schema update. In fact, complex schema updates can be effected via sequences of schema change primitives. 3.1 Schema selection ....
[Article contains additional citation context not shown here]
F. Grandi, F. Mandreoli, and M. R. Scalas. A Formal Model for Temporal Schema Versioning in Object-Oriented Databases. Technical Report CSITE-014-98, CSITE - CNR, November 1998. Available on ftp://csite60.deis.unibo.it/pub/report.
Towards a Model for Spatio-Temporal Schema Selection - Roddick, Grandi, Mandreoli, .. (1999) Self-citation (Grandi Mandreoli Scalas) (Correct)
No context found.
Grandi, F., Mandreoli, F. and Scalas, M.R. A Formal Model for Temporal Schema Versioning in Object-Oriented Databases. Technical Report CSITE-014-98, CSITECNR, Universit`a di Bologna, 1998.
A Generalized Modeling Framework for Schema Versioning.. - Grandi, Mandreoli, Scalas (2000) Self-citation (Grandi Mandreoli Scalas) (Correct)
....is required in order to represent the history of changes in the object structure. While temporal schema versioning has been extensively studied in the context of relational databases [DGS97, Rod96] only a few studies concerning object oriented databases have taken it into account [GS OP98, CJK91, GMS98] Anyway, in all these proposals the time lines involved, valid time and or transaction time, are represented as a single time line and they do not support alternative sequences of events. The main attempt of this work is to integrate the branching approach in the temporal schema versioning ....
....and inheritance relationships, respectively. It is rooted by the first consolidated version supplied by users. For each consolidated version, our model enables users to keep track of all local schema changes by providing a bitemporal schema versioning support similar to our previous proposal [GMS98] Bitemporal schema versioning [DGS97] based on the valid and transaction time dimensions, enables retroand pro active schema changes (keeping track of them in the system) to produce past, present and future schema versions. In our model, the versioning granularity is the temporal version, that ....
[Article contains additional citation context not shown here]
F. Grandi, F. Mandreoli, and M. R. Scalas. A Formal Model for Temporal Schema Versioning in Object-Oriented Databases. Technical Report CSITE-014-98, CSITE - CNR, November 1998. Available on ftp://csite60.deis.unibo.it/pub/report.
The Data Warehouse: A Temporal Database - Martin, Abelló (Correct)
No context found.
Fabio Grandi and Federica Mandreoli. A Formal Model for Temporal Schema Versioning in Object-Oriented Databases. Technical Report TR-68, Time Center, 2002.
Towards a Model for Spatio-Temporal Schema Selection - Roddick (1999) (Correct)
No context found.
Grandi, F., Mandreoli, F. and Scalas, M.R. A Formal Model for Temporal Schema Versioning in ObjectOriented Databases. Technical Report CSITE-014-98, CSITE-CNR, Universita di Bologna, 1998.
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