Schema Evolution publication categorizer

... Skarra, A Zdonik, S ... such may be modified and shared. The effects of changing a type extend to objects of the type and to programs that use objects of the ...

Publication - cat - 06/15/2023 - 14:51 - 0 comments - 1 attachment

... Pons, A; Keller, R. K. Author:  Pons, A Keller, R ...

Publication - cat - 07/03/2022 - 23:42 - 0 comments - 0 attachments

... design (CAD) systems. In this paper we address a broad spectrum of semantic and operational issues in version control for a public/private distributed architecture of CAD systems. The research issues ...

Publication - cat - 07/28/2016 - 08:29 - 0 comments - 0 attachments

... overview has been published so far. Secondly, the study of a general application scenario led us to a list of requirements. We propose a general framework based on schema ...

Publication - cat - 04/17/2013 - 13:16 - 0 comments - 0 attachments

... schema of the database, support for schema evolution is a highly required feature. Therefore, a set of schema update primitives must be provided which can be used to perform ...

Publication - cat - 04/17/2013 - 13:05 - 0 comments - 0 attachments

... on existing evolution support schemes and introduces a more general and functional mechanism to support schema evolution andinstance ... compatibility for old applications, while permitting a wider range of evolution operations. It achieves this by supporting schema ...

Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment

... KB This paper describes work carried out on a model for the versioning of class definitions in an object-oriented database. ... on attributes of the previous and current version of a class definition, instances of any version of the class can be converted to ...

Publication - cat - 04/17/2013 - 12:38 - 0 comments - 1 attachment

... in every aspect. On the other hand, the prototyping of a database design may also involve changes to both the structure and behavior of a schema. Unfortunately, most of the current systems offer little support for ...

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

... 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

... 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

... components. We show that data independence, which is a neglected concept in object databases, helps to avoid reorganizations in case ... and reducing schema transformations. We informally present a couple of examples to illustrate the idea of a schema transformation ...

Publication - cat - 04/17/2013 - 07:05 - 0 comments - 0 attachments

... 100 - 499 When a database is shared by many users, updates to the database schema are almost always prohibited because there is a risk of making existing application programs obsolete when they run against ...

Publication - cat - 04/17/2013 - 06:38 - 0 comments - 0 attachments

... systems) with multimedia documents. At MCC we have built a prototype object-oriented database system, called ORION. It adds persistence ... schema evolution, that is, the ability to dynamically make a wide variety of changes to the database schema. In this paper, following a ...

Publication - cat - 04/17/2013 - 06:05 - 0 comments - 0 attachments

... the database and mapping must evolve in kind. We present a technique that, in most cases, allows those evolutions to progress ...

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

... Terwilliger, JF; Bernstein, PA; Unnithan, A Author:  ... in the Microsoft Entity Framework. When starting with a valid mapping between client and store, MoDEF translates changes made to a ...

Publication - cat - 04/16/2013 - 20:05 - 0 comments - 1 attachment

... they seldom support automatic propagation mechanisms. A proposal is described that enables Sherpa to fully support the propagation of ... It extends previous classification mechanisms with a dynamic capability which adequately supports evolving class definitions and ...

Publication - cat - 04/16/2013 - 18:49 - 0 comments - 1 attachment

... Habermann, A Year:  ... complex schema changes, but also database reorganization. A database administrator uses a declarative notation to describe mappings ...

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

... 1.28 MB This paper presents a version model which handles database schema changes and which takes evolution ... development of partial schema versions, or views of a schema. These versions are created in the same database from a common ...

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

... 0 Citations range:  n/a Attachment Size ... is modified, the database needs to be changed in such a way that the schema and the database remain consistent with each other. ...

Publication - cat - 04/16/2013 - 11:27 - 0 comments - 1 attachment

... 0 Citations range:  n/a A `reasonable' minimal set of primitives for ...

Publication - cat - 04/16/2013 - 08:16 - 0 comments - 0 attachments

... 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

... class is derived from several classes. This paper proposes a solution based on the definition of a multi-level schema architecture, emphasising: (i) The integration of this ...

Publication - cat - 04/16/2013 - 06:27 - 0 comments - 0 attachments

... Schema evolution is the process of applying changes to a schema in a consistent way and propagating these changes to the instances while the ...

Publication - cat - 04/16/2013 - 05:49 - 0 comments - 0 attachments

... and incremental development. On the schema level, a firm restriction in this evolution is that it can only be done by evolving class hierarchies downwards by subclassing. We show a unified approach to class evolution in object-oriented databases, where class ...

Publication - cat - 04/16/2013 - 05:27 - 0 comments - 0 attachments