Filters








166,036 Hits in 5.5 sec

Object-Oriented Wrapper for Relational Databases in the Data Grid Architecture [chapter]

Kamil Kuliberda, Jacek Wislicki, Radoslaw Adamus, Kazimierz Subieta
2005 Lecture Notes in Computer Science  
In our solution we use the stack-based approach to query languages, its query language SBQL, updateable object-oriented virtual views and the query modification technique.  ...  The paper presents a solution of the problem of wrapping relational databases to an object-oriented business model in the data grid architecture.  ...  In our opinion, the Stack-Based Approach and its query language SBQL offer the first and universal solution to the problem of updateable object-oriented database views.  ... 
doi:10.1007/11575863_56 fatcat:dg3b3e6zinc4rgt2jcncvovqjy

An active meta-model for knowledge evolution in an object-oriented database [chapter]

Z. Bellahsene
1993 Lecture Notes in Computer Science  
Our approach consists of a proposal of a meta-model providing an open environment to allow knowledge evolution in object-oriented database systems.  ...  Knowledge evolution means updates on database schema: propagation of updates from schema to instances and dynamic propagation of views update operations.  ...  evolution in object-oriented database systems.  ... 
doi:10.1007/3-540-56777-1_3 fatcat:eqmzvwsl6zgc7a7i35b5a4ajeq

Incremental maintenance of object-oriented data warehouses

Ching-Ming Chao
2004 Information Sciences  
Data warehousing is an approach to data integration in which integrated information is stored in a data warehouse for direct querying and analysis.  ...  To provide fast access, a data warehouse stores materialized views defined over data from its data sources. As a result,  ...  In the prototype system, databases are built on the Object-Store object-oriented database management system and programs are written in the C++ object-oriented programming language.  ... 
doi:10.1016/j.ins.2003.07.014 fatcat:3a4iezyojfbydmq7tm62n4vjle

Security Implications of Distributed Database Management System Models

Charupalli Sunil, J Seetha, S.R. Vinotha
2012 International Journal of Soft Computing and Software Engineering [JSCSE]  
Security features must be addressed when escalating a distributed database. The choice between the object oriented and the relational data model, several factors should be considered.  ...  In this paper, the security strengths and weaknesses of both database models and the thorough problems initiate in the distributed environment are conversed. 21 done relative merits of each model with  ...  The difference is in execution. An object-oriented database maintains integrity before and after an update by executing constraint checking methods on the affected objects.  ... 
doi:10.7321/jscse.v2.n11.3 fatcat:4hsbm2k7nreyboucqeonkymigq

Incremental materialization of object-oriented views

Reda Alhajj, Ashraf Elnagar
1999 Data & Knowledge Engineering  
We present an approach to handle incremental materialization of object-oriented views. Queries that define views are implemented as methods that are invoked to compute corresponding views.  ...  To avoid computation from scratch each time a view is accessed, we introduce some deferred update algorithms that reflect for a view only related modifications introduced into the database while that view  ...  Furthermore, deferred update proved to be more practical than immediate update especially when object-oriented databases are considered.  ... 
doi:10.1016/s0169-023x(98)00042-1 fatcat:psqx54sdvjbsjiei6o7og5tyri

Security Implications of Distributed Database Management System Models [article]

C.Sunil Kumar, J.Seetha, S.R.Vinotha
2014 arXiv   pre-print
Security features must be addressed when escalating a distributed database. The choice between the object oriented and the relational data model, several factors should be considered.  ...  In this paper, the security strengths and weaknesses of both database models and the thorough problems initiate in the distributed environment are conversed.  ...  The difference is in execution. An object-oriented database maintains integrity before and after an update by executing constraint checking methods on the affected objects.  ... 
arXiv:1401.7733v1 fatcat:sfskajpc2nc3fgynp7gksvjon4

Decomposition of multilevel objects in an object-oriented database [chapter]

N. Boulahia-Cuppens, F. Cuppens, A. Gabillon, K. Yazdanian
1994 Lecture Notes in Computer Science  
decompose a multilevel object oriented database which supports these complex multilevel objects into a collection of single level databases.  ...  This idea is similar to the idea already proposed for multilevel relational databases. However, our approach takes fully advantage of the object oriented model.  ...  Conclusion Our objective in this paper is to develop a new model for Multilevel Object Oriented Databases.  ... 
doi:10.1007/3-540-58618-0_75 fatcat:wnmbcj6ntnb5vdoynkl6jcq3a4

Solving ORM by MAGIC:MApping GeneratIon and Composition [chapter]

David Kensche, Christoph Quix, Xiang Li, Sandra Geisler
2010 Lecture Notes in Computer Science  
In this paper, we present MAGIC, an approach using bidirectional query and update views, based on a generic metamodel and a generic mapping language.  ...  Object-relational mapping (ORM) technologies have been proposed as a solution for the impedance mismatch problem between object-oriented applications and relational databases.  ...  In doing, so MAGIC could as well provide object-oriented access to XML databases.  ... 
doi:10.1007/978-3-642-16092-9_12 fatcat:6uoo3u5tvvg2haoecologr534u

Transparency in Object-Oriented Grid Database Systems [chapter]

Krzysztof Kaczmarski, Piotr Habela, Hanna Kozankiewicz, Krzysztof Stencel, Kazimierz Subieta
2006 Lecture Notes in Computer Science  
The architecture is based on object-oriented updatable database views that serve, in particular, as adapters of local servers and integrators/mediators on the level of a global virtual repository.  ...  The paper presents various transparency issues that have to be considered during development of object-oriented Grid applications based on virtual repositories.  ...  Section 3 is devoted to the architecture, based on the concept of object-oriented updatable database views. Section 4 presents generalities of the creation of a Grid database. Section 5 concludes.  ... 
doi:10.1007/11752578_81 fatcat:lnl5xqwjbrbsvkcakxg2znpcku

SBQL Views - Prototype of Updateable Views

Hanna Kozankiewicz, Kazimierz Subieta
2004 Symposium on Advances in Databases and Information Systems  
The prototype follows a novel approach to view updates based on the Stack-Based Approach to object-oriented and XMLoriented query languages.  ...  The novelty of the approach consists in augmenting a view definition by descriptions of update operations that can be performed on virtual objects.  ...  Other repositories, in particular object-oriented databases, can be easily adopted through corresponding wrappers.  ... 
dblp:conf/adbis/KozankiewiczS04 fatcat:sok55uvt65auhgcyxc7bclrth4

View maintenance in object-oriented databases [chapter]

Reda Alhajj, Faruk Polat
1996 Lecture Notes in Computer Science  
In this paper, we present a model that facilitates view maintenance within object-oriented databases.  ...  Finally it happened that, view maintenance within object-oriented databases subsumes that within the nested and hence conventional relationai models.  ...  In this paper, we describe a model which facilitates view maintenance in object-oriented databases.  ... 
doi:10.1007/bfb0034677 fatcat:2mlapik4cjdbfjtsn6qpoxvaju

Object-Oriented Wrapper for Semistructured Data in a Data Grid Architecture

Kamil Kuliberda, Jacek Wislicki, Radoslaw Adamus, Kazimierz Subieta
2006 Business Information Systems  
A corresponding wrapper is founded on the concepts of the stackbased approach (SBA) and updatable views.  ...  A query entering the front-endo f the wrapper (object-oriented business model) is transformed and rewritten according to the SBQL optimization rules incorporated in the wrapper and then evaluated in t  ...  In our opinion, the Stack-Based Approach and its query language SBQL offer the first and universal solution to the problem of updatable object-oriented database views.  ... 
dblp:conf/bis/KuliberdaWAS06 fatcat:alzo6tuhinhp7jj26taculr7mq

Intelligent Data Integration Middleware Based on Updateable Views [chapter]

Hanna Kozankiewicz, Krzysztof Stencel, Kazimierz Subieta
2005 Lecture Notes in Computer Science  
Views deliver virtual updatable objects to global clients. Objects can be associated with methods that present the procedural part of remote services, like e.g. in Web Services.  ...  We present a new approach to the grid technology that is based on updateable views.  ...  In our recent research [3, 4, 6] we have developed and implemented object-oriented virtual views that have full algorithmic power and are updateable with no anomalies and limitations.  ... 
doi:10.1007/11558637_4 fatcat:2n4zvz4cljho7axtzbs6pgswfu

Security Management Through Overloading Views [chapter]

Radosław Adamus, Kazimierz Subieta
2004 Lecture Notes in Computer Science  
In this paper we show how it can be used to manage data security. The model is based on updateable object views built within the stack-based approach to objectoriented query languages.  ...  In our model overloading views are named encapsulated database entities that can be dynamically inserted, modified or deleted.  ...  in the database literature: • Full transparent updateability of virtual objects delivered by the view.  ... 
doi:10.1007/978-3-540-30469-2_1 fatcat:5nwlqprmajb2lg4oqh4i4lhuqy

Incremental maintenance of materialized object-oriented views in MultiView: strategies and performance evaluation

H.A. Kuno, E.A. Rundensteiner
1998 IEEE Transactions on Knowledge and Data Engineering  
However, little progress has been made thus far regarding the topic of view materialization in object-oriented databases (OODBs).  ...  In this paper, we demonstrate that there are several significant differences between the relational and object-oriented paradigms that can be exploited when addressing the object-oriented view materialization  ...  Besides the persons listed above, we also would like to thank the other members of our University of Michigan Database Group, in particular Viviane Taube, Stacie Hibino, Woody Huang, and Nauman Chaudhry  ... 
doi:10.1109/69.729731 fatcat:j5igj2edm5hlzox4qxbscfjkme
« Previous Showing results 1 — 15 out of 166,036 results