Results 201 to 210 of about 2,151,357 (249)
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An introduction to schema versioning in OODBMS

Proceedings of 7th International Conference and Workshop on Database and Expert Systems Applications: DEXA 96, 1996
Object oriented database management systems (OODBMS) have enormous advantages in comparison to relational systems in modeling highly complex and dynamic application scenarios. Still they lack some flexibility which could help their promotion into widely spread industrial use.
Sven-Eric Lautemann
semanticscholar   +3 more sources

Validating Quicksand: Schema Versioning in \tauXSchema

22nd International Conference on Data Engineering Workshops (ICDEW'06), 2006
The W3C XML Schema recommendation defines the structure and data types for XML documents, but lacks explicit support for time-varying XML documents or for a time-varying schema. In previous work we introduced \tauXSchema which is an infrastructure and suite of tools to support the creation and validation of time-varying documents, without requiring any
C. Dyreson   +4 more
semanticscholar   +3 more sources

Schema Evolution and Versioning: A Logical and Computational Characterisation

open access: yes, 2001
In this paper we study the logical and computational properties of schema evolution and versioning support in object-oriented databases. To this end, we present the formalisation of a general model for an object base with evolving schemata and define the semantics of the provided schema change operations.
MANDREOLI, Federica   +2 more
openaire   +3 more sources

On Schema Versioning in Temporal Databases

Temporal Databases, 1995
The support of schema versioning has been considered only to a limited extent in the literature on temporal databases. In particular, solutions were proposed so far for the management along transaction-time of schema versions, to be used as different interfaces on the same temporal data.
C. De Castro, F. Grandi, M. R. Scalas
semanticscholar   +2 more sources

Schema Versioning in Conventional and Emerging Databases

, 2018
In information systems, not only do data change over time, but also database schemata evolve frequently as a response to evolving application requirements. In the literature, schema evolution and schema versioning are the two techniques that were proposed to support schema changes in a DBMS, without loss of extant data and with continued support of ...
Zouhaier Brahmia   +3 more
semanticscholar   +4 more sources

SVMgr: A Tool for the Management of Schema Versioning

International Conference on Conceptual Modeling, 2004
The SVMgr tool is an integrated development environment for the management of a relational database supporting schema versioning, based on the multi-pool implementation solution [2]. In a few words, the multi-pool solution allows the extensional data connected to each schema version (data pool) to evolve independently from each other.
F. Grandi
semanticscholar   +2 more sources

Schema Versioning for Archives in Database Systems

International Conference on Conceptual Modeling, 1999
Extremely large and ever growing databases lead to severe problems in storage, database administration, and performance. The integration of archives into database systems represents a new approach to relieve a database of rarely used data. Archive data is separated from the database logically and physically and can be placed on tertiary storage.
Ralf Schaarschmidt, Jens Lufter
semanticscholar   +3 more sources

Temporal Schema Versioning in tauOWL

open access: yes, 2015
The W3C OWL 2 recommendation defines the structure and data types for OWL documents, but lacks explicit support for time-varying OWL documents or for timevarying schema. In previous work, we introduced tauOWL which is an infrastructure and suite of tools to support the creation and validation of time-varying OWL documents, without requiring any changes
Abir Zekri   +3 more
core   +5 more sources

Schema Versioning

open access: yes, 2014
The main goal of this chapter is (i) to present the different research proposals dealing with schema versioning, and (ii) to discuss the support provided by available DBMSs to manage schema versioning.
Brahmia, Zouhaier   +3 more
openaire   +2 more sources

XML Schema Evolution and Versioning

open access: yes, 2010
The large dynamicity of XML documents on the Web has created the need to adequately support structural changes and to account for the possibility of evolving and versioning the schemas describing XML document structures. This chapter discusses and compares the support for schema evolution and versioning provided by commercial systems as well as the ...
GUERRINI, GIOVANNA, MESITI M.
openaire   +3 more sources

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