Object and Object Relational Databases

2013 ◽  
pp. 161-182
Author(s):  
Peter Lake ◽  
Paul Crowther
Keyword(s):  
Relational Databases ◽  
Object Relational

Object-Relational Modeling

2009 ◽  
pp. 162-170
Author(s):  
Jaroslav Zendulka
Keyword(s):  
Relational Database ◽  
Relational Databases ◽  
Conceptual Modeling ◽  
Object Oriented ◽  
Database Systems ◽  
Object Relational ◽  
The Difference ◽  
Object Oriented Approach ◽  
Entity Relationship ◽  
Oriented Approach

Modeling techniques play an important role in the development of database applications. Well-known entity-relationship modeling and its extensions have become a widely-accepted approach for relational database conceptual design. An object-oriented approach has brought a new view of conceptual modeling. A class as a fundamental concept of the object-oriented approach encapsulates both data and behavior, whereas traditional relational databases are able to store only data. In the early 1990s, the difference between the relational and object-oriented (OO) technologies, which were, and are still used together to build complex software systems, was labeled the object-relational impedance mismatch (Ambler, 2003). The object-oriented approach and the need of new application areas to store complex data have greatly influenced database technology since that time. Besides appearance of object-oriented database systems, which fully implement objectoriented paradigm in a database environment (Catell et al., 2003), traditional relational database management systems become object-relational (Stonebraker & Brown, 1999). The most recent versions of the SQL standard, SQL: 1999 (Melton & Simon (2001) and SQL: 2003 (Eisenberg et al., 2004), introduced object-relational features to the standard and leading database producers have already released packages which incorporate them.

Organizing Multimedia Objects by Using Class Algebra

2005 ◽  
pp. 2243-2247
Author(s):  
Daniel J. Buehrer
Keyword(s):  
Web Services ◽  
Semantic Web ◽  
Relational Databases ◽  
Service Oriented Architectures ◽  
Web Based ◽  
Xml Documents ◽  
Object Relational ◽  
Service Oriented ◽  
Persistent Data ◽  
Hypertext Markup Language

Web-based applications (Web services and service-oriented architectures) can be run via a Web-based browser. There are several approaches to writing such Web-based applications. A lightweight approach is suitable for hand-held devices. In this approach, a Java servlet or a JSP page (Java 2 Platform, JSP), or an ASP application (Microsoft .NET, ASP) generates HTML (Hypertext Markup Language), XHTML, or XML documents (W3C Semantic Web Activity, XHTML, XML) to be displayed by the browser. Most browsers use an anchored URLs extension (e.g., .doc, .jpg, .xml, etc.) to choose an appropriate plug-in to display the URL when it is clicked. Besides displaying text and multimedia, Web servers and/or browsers can also execute Java applets or scripting languages to read and/or change persistent data. Previously, about 98% of these data were stored in relational or object-relational databases. However, recently more of these data are being stored in XML-based documents. Often these documents have an associated “schema” declaring the nesting of tags and the types of primitive values, or an “ontology” (Everett et al., 2002, Hunter, 2003) declaring classes, attributes, and relations that are used in the document.

A generic watermarking model for object relational databases

2019 ◽  
Vol 78 (19) ◽  
pp. 28111-28135 ◽  
Author(s):  
Vidhi Khanduja ◽  
Shampa Chakraverty
Keyword(s):  
Relational Databases ◽  
Object Relational

Using Object-Oriented Features

2011 ◽  
pp. 51-88
Author(s):  
Johanna Wenny Rahayu ◽  
David Tanier ◽  
Eric Pardede
Keyword(s):  
Relational Databases ◽  
Object Oriented ◽  
Relationship Types ◽  
Object Relational ◽  
The Relationship

In Chapter II, we discussed the different features available in Oracle™ that can be used to implement an object-oriented model. We will use those features in this chapter. The discussion in this chapter will be categorized based on the relationship types. There are three distinct relationship types that we have to consider in object-oriented modeling for implementation in object-relational databases: inheritance, association, and aggregation. Some manipulations will be needed in order to accommodate the features of these relationships.

Integrity Issues in the Web

2002 ◽  
pp. 293-321 ◽  
Author(s):  
Jose F. Aladana Montes ◽  
Mariemma I. Yague del Valle ◽  
Antonio C. Gomez Lora
Keyword(s):  
Database Management ◽  
Relational Databases ◽  
Distributed Databases ◽  
Database Management Systems ◽  
Data Models ◽  
Management Systems ◽  
New Paradigm ◽  
File Management ◽  
Object Relational ◽  
The Web

Issues related to integrity in databases and distributed databases have been introduced in previous chapters. Therefore, the integrity problem in databases and how it can be managed in several data models (relational, active, temporal, geographical, and object-relational databases) are well known to the reader. The focus of this chapter is on introducing a new paradigm: The Web as the database, and its implications regarding integrity, i.e., the progressive adaptation of database techniques to Web usage. We consider that this will be done in a quite similar way to the evolution from integrated file management systems to database management systems.

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