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... KB We examine the problem of type evolution in an object-oriented database environment. Type definitions are persistent objects in the database and as such may be modified and shared. The effects of changing ...
Publication - cat - 06/15/2023 - 14:51 - 0 comments - 1 attachment
... We are concerned by schema evolution in Object Oriented Databases (OODB) that is processed by a modification on the ... a new categorization of the different modifications in three categories : primitive, composite and complexe modifications. On ...
Publication - cat - 07/03/2022 - 23:42 - 0 comments - 0 attachments
... development. On the schema level, a firm restriction in this evolution is that it can only be done by evolving class hierarchies ... subclassing. We show a unified approach to class evolution in object-oriented databases, where class hierarchies are allowed to grow in ...
Publication - cat - 04/16/2013 - 05:27 - 0 comments - 0 attachments
... histories of the schema objects should be traceable. In this paper we propose a method for managing schema changes by exploiting ...
Publication - cat - 04/16/2013 - 03:38 - 0 comments - 0 attachments
... the myriad of possible change semantics a user may desire in the future, any pre-defined set is not sufficient. Rather we present a ... invariants, can be a very expensive re-engineering effort. In this paper we present an approach that de-couples the constraints from the ...
Publication - cat - 04/16/2013 - 02:49 - 0 comments - 1 attachment
... mechanism is a pertinent way to implement specialization in an object database and differs from the classical mechanism used in most object-oriented database systems. It supports multiple instantiation, ...
Publication - cat - 04/16/2013 - 02:38 - 0 comments - 1 attachment
Authors: Benatallah, B Author: Benatallah, B Year: ...
Publication - cat - 04/16/2013 - 02:27 - 0 comments - 1 attachment
... versioning, and emulation at the instance level). In addition, we introduce the concept of class/schema version pertinence ...
Publication - cat - 04/16/2013 - 01:38 - 0 comments - 0 attachments
... that alternative schema perspectives seems to be needed, in addition to revision-like changes. The primary goal is to support change ...
Publication - cat - 04/16/2013 - 01:16 - 0 comments - 0 attachments