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Object-oriented databases have been introduced primarily to ease the development of database applications. ... For instance, a query lan- guage is a core component of a view mechanism, and a number of query languages have been proposed for object-oriented databases (e.g., [4, 19, 10] ). ... Our starting point is a standard object-oriented database model, the Oz model [5, 16] . In this model, the database consists of a hierarchy of classes. ...doi:10.1145/119995.115830 fatcat:b3vgcanflndzzlel7hxz7qq7t4
2009 Second International Conference on Future Information Technology and Management Engineering
a secure database. ... This paper discusses the various security issues in databases. This approach is useful for the planning of explicit and directive based database security requirements. ... The incorporation of object-oriented concepts offers new tools for securing the data stored in the object databases. ...doi:10.1109/fitme.2009.140 fatcat:nqxkdjjlsrgslketywe2xuqpxy
The motivation of this paper is to define an object data model integrating viewpoints in databases and to present a federated database architecture integrating multiple viewpoint sources following a local-as-extended-view ... In particular, the integration of the viewpoint mechanism to the conventional object-oriented data model gives it flexibility and allows one to improve the modeling power of objects. ... The Methodology of the MVDB Model The MVDB is an object-oriented data model with an extension by concepts and mechanisms which allow the multiple, evolutionary and distributed representation of a database ...doaj:a99f11a156e147bbbfa27952e06cf2ee fatcat:pshb623t4bbolcydqmleucjfgm
A view mechanism can help handle the complex semantics in emerging application areas such as image databases. This paper presents the view mechanism we defuted for the DISIMA image database system. ... Since DISIMA is being developed on top of an object-oriented database system, we first propose a powerful object-oriented view mechanism based on the separation between types (interface functions) and ... View mechanisms are useful in other newly emerging application areas of database technology. In this paper, we discuss a view mechanism for one of those areas, image databases. ...doi:10.1007/978-0-387-35561-0_14 fatcat:mkwslrvuh5hill7repfr5sxebu
Library & Information Science Abstracts
Describes a novel method for creating views in an object orientated database system (OODB) by using a mechanism termed ‘dynamic instance conversion’. ... SE 4808 TOS: a temporal object-oriented system. F. Fotouhi. Journal of Database Management, 5 (4) Fall 94, p.3-14. il.refs. Part of a special issue on object oriented database systems. ...
The motivation of this paper is to define an object data model integrating viewpoints in databases and to present a federated database architecture integrating multiple viewpoint sources following a local-as-extended-view ... In particular, the integration of the viewpoint mechanism to the conventional object-oriented data model gives it flexibility and allows one to improve the modelling power of objects. ... Abiteboul  provides a general framework for view definition. A virtual class mechanism is used for instantiating views in object-oriented databases. ...doi:10.2498/cit.1000692 fatcat:qk3jhhxnxjg6lgi5r7q63xc2ba
Data Science Journal
Its integration into a data model improves the flexibility of the conventional object-oriented data model and allows one to improve the modelling power of objects. ... The contribution of this paper is twofold: to define an object data model integrating viewpoints in databases and to present a federated database system integrating multiple sources following a local-asextended-view ... Abiteboul provides a general framework for view definition. A virtual class mechanism is used for instantiating views in object-oriented databases. ...doi:10.2481/dsj.4.92 fatcat:r7stwzjknbamzatwu3dlt2crwa
There are many ways of implementing Object-Persistence among which Gateway-based method, Object-Relational database method and Object-Oriented database method are the three major categories. ... Object-Persistence feature contributes a major role in designing data model. ... Object-Oriented databases are best for providing seamless persistence, from a programming language point of view. ...doi:10.5120/14837-3099 fatcat:gzpzdh7zkjcr7kdgw6q3eznqde
Signals and Communication Technology
Especially, we have presented MediaView as a novel object-oriented view mechanism for multimedia databases. ... Object algebra is a mechanism commonly used to derive views in many previously suggested object-oriented view mechanisms. ...doi:10.1007/978-3-662-05300-3_9 fatcat:o5alytytmvg4ncgeal2zpncnfm
Proceedings of the 4th international conference conference on Computer systems and technologies e-Learning - CompSysTech '03
The general characteristics are described of the object-oriented database management system CODAS implemented as a library of C++ classes. ... It has gained wide acceptance as a unifying paradigm for the design of database systems, programming languages, and artificial intelligence area over the last decade. ... A media type must be loaded before it is viewed. The purpose of a loader is to prepare a media type for viewing or manipulation. A specific loader is associated with each media type. ...doi:10.1145/973620.973648 fatcat:c63bjvaxqjhc7k5tivugfpzaoq
The ODMG Object Model offers a standard for object-oriented database designers, while attempting to address some issues of interoperability. ... This paper describes our efforts to extend its relational style algebra, and to provide query closure and a viewing mechanism for OQL to construct multidatabase schemas. ... Our reasons are mainly of a practical nature. A standard for object database modelling and design is necessary for the future of object oriented databases and multidatabases. ...doi:10.1016/s0950-5849(99)00042-7 fatcat:djmsnyqjhbalvor3qcoanfxzfm
We see a trend toward extending object-oriented languages in the direction of databases, and, at the same time, toward extending database systems with object-oriented ideas. ... In the database view, classes are used as a primary means of grouping objects and searching for objects  . In some sense, classes take the place of relations. ...doi:10.1145/38765.38848 dblp:conf/oopsla/BloomZ87 fatcat:l6o422cdhjachg2krtvonsfx2i
In this regard, POSTGRES could be viewed as an example of a structural object-oriented database system. ... Structural object-oriented database systems attempt such an integration [57-60]. The synergy between the two views is impressive. ...
We see a trend toward extending object-oriented languages in the direction of databases, and, at the same time, toward extending database systems with object-oriented ideas. ... In the database view, classes are used as a primary means of grouping objects and searching for objects  . In some sense, classes take the place of relations. ...doi:10.1145/38807.38848 fatcat:hpm42phw7jdbveul2fhrqrlcga
The authors has observed a major gap between querying features of persistence mechanisms and the requirements for developing true object oriented software applications. ... From this point of view a key aspect is represented by the database querying features. ... Conclusions We consider that this new syntax for SE-LECT and FROM clauses permits to obtain a graph of objects, thus simplifying development of object-oriented software. ...doaj:a687105360494dbbb295eca659f702f3 fatcat:pv2isfpcdjdwbofsthgdsjd5oi
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