Schema Evolution publication categorizer

... 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

... 10 - 49 Changes in the real world may require both the database population and the database schema to evolve. Particularly, this is the case in CAD/CAM and CASE database systems, in which the design objects constantly ...

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

... application development lifecycle. The two primary schemas in an application, the conceptual model and the persistent database model, must ... model changes and the database and mapping must evolve in kind. We present a technique that, in most cases, allows those evolutions to ...

Publication - cat - 04/16/2013 - 20:38 - 0 comments - 0 attachments

... simple changes to individual schemas. As described in this paper, OTGen supports not only more complex schema changes, but also ... to the new definitions, thus facilitating improvements in performance, functionality, and usability of the database. (Conference, ...

Publication - cat - 04/16/2013 - 17:38 - 0 comments - 1 attachment

... schema modifications without database reorganisation in Object Oriented Database Systems. Our approach allows each user to specify ... we argue that view mechanism capabilities must be enhanced in order to be used as a uniform framework to manipulate both the schema and ...

Publication - cat - 04/16/2013 - 06:27 - 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