- The management of changing types in an object-oriented database
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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
- Schema Evolution in Heterogeneous Database Architectures, A Schema Transformation Approach
... integration and schema evolution into one framework. In previous work we have developed a general
framework to support schema transformation and integration in heterogeneous database architectures. Here we show how this framework also ...
Publication - cat - 09/13/2022 - 17:45 - 0 comments - 0 attachments
- Schema evolution in object databases by catalogs
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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
- NoSQL Schema Evolution and Data Migration: State-of-the-Art and Opportunities.
... even altogether schema-free. They allow to store datasets in different structural versions to co-exist. Yet even when the database ... about the structure of the stored data. For instance, in Figure 1, the Java code in lines 1 through 9 implies a schema: An entity for ...
Publication - cat - 04/17/2022 - 19:15 - 0 comments - 0 attachments
- An Architecture for Managing Database Evolution
... and extension) are available. The strategy of evolution in which our architecture is based is that of lsquoforward database ... down to the logical schema and to the extension. In order to put into practice this strategy, each component of a database is ... a translation information system is considered in order to manage the translation of conceptual elements into logical schema ...
Publication - cat - 04/17/2013 - 13:27 - 0 comments - 1 attachment
- On Schema Evolution in Multidimensional Databases
... on a logical level (e.g. OLAP systems) are often used in data warehouse environments. The user requirements in these dynamic application areas are subject to frequent changes. This ...
Publication - cat - 04/17/2013 - 12:49 - 0 comments - 1 attachment
- Co-transformations in Database Applications Evolution
... Generative and Transformational Techniques in Software Engineering, Lecture Notes in Computer Science 4143, 2006
URL:
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Publication - acleve - 04/17/2013 - 11:38 - 0 comments - 1 attachment
- A Survey of Schema Evolution in Object-Oriented Databases
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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
- Evolution Support in Large-Scale Interoperable Systems: a Metadata Driven Approach
... cost and effort required for maintaining the federation in a consistent state after its launch. If only human intervention is to be ... of change at both local and federal conceptual levels in interoperating database systems. The basis for the model is the exploitation ...
Publication - cat - 04/17/2013 - 10:05 - 0 comments - 0 attachments
- A model for schema evolution in temporal relational databases
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CompEuro93; Computers in Design
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... transaction time and valid time are added to the data. In this context, the modification of the schema which a database management ...
Publication - cat - 04/17/2013 - 06:49 - 0 comments - 0 attachments
- A Taxonomy for Schema Versioning Based on the Relational and Entity Relationship Models
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Recently there has been increasing interest in both the problems and the potential of
accommodating evolving schema in databases, especially in systems which necessitate a
high volume of ...
Publication - cat - 04/17/2013 - 05:05 - 0 comments - 0 attachments
- What-If Analysis for Data Warehouse Evolution
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10 - 49
In this paper, we deal with the problem of performing what-if analysis for changes that occur in the schema/structure of the data warehouse sources. We abstract software ...
Publication - pvassil - 04/17/2013 - 04:49 - 0 comments - 0 attachments
- Automated Co-evolution of Conceptual Models, Physical Databases, and Mappings
... 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
- Beyond schema evolution to database reorganization
... 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
- Language Extensions for the Automation of Database Schema Evolution
... Systems face the problem of maintaining their systems in the presence of frequently occurring changes in any counterpart of it. In other words, when a change occurs in any point of ...
Publication - gpapas - 04/16/2013 - 08:27 - 0 comments - 1 attachment
- Co-transformations in Information System Reengineering
... WCRE'04 / ATEM'04, Electronic Notes in Theoretical Computer Science, Vol. 137, Is. 3: 5-15
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Publication - huliganka - 04/16/2013 - 07:49 - 0 comments - 0 attachments
- Adaptive Query Formulation to Handle Database Evolution
... queries and applications, mainly due to the fact that, in most cases, their role as integral parts of the environment is not given the ... the queries are not designed to handle database evolution. In this paper, we introduce a graph-based model that uniformly captures ...
Publication - gpapas - 04/16/2013 - 07:38 - 0 comments - 1 attachment
- Hecataeus: A What-If Analysis Tool for Database Schema Evolution
... are added, removed or updated rather often. Small changes in the database configurations might impact a large number of applications and ...
Publication - gpapas - 04/16/2013 - 07:27 - 0 comments - 0 attachments
- Efficient Maintenance of Temporal Data Warehouses
... the entire history of source databases is not stored in the warehouse; the warehouse keeps enough information for its ... (i.e. non-temporal operators). Although temporal views in V are specified in a temporal algebraic query language we translate them into relational ...
Publication - huliganka - 04/16/2013 - 06:27 - 0 comments - 1 attachment
- View mechanism for schema evolution in object-oriented dbms
... 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
- Unified Class Evolution by Object-Oriented Views
... 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
- A Randomized Approach for the Incremental Design of an Evolving Data Warehouse
... views that determine its schema and its content in terms of the schema and the content of the data sources. DW applications ... against the cost of maintaining the materialized views. In an evolving DW application, new queries need to be answered by the DW. An ...
Publication - cat - 04/16/2013 - 04:49 - 0 comments - 1 attachment
- Managing Schema Evolution Using a Temporal Object Model
... 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
- ROVER: A Framework for the Evolution of Relationships
... 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
- Multiobjects to Ease Schema Evolution in an OODBMS
... 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