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Chapter 14. Database Connectivity and Web Development Database Systems: Design, Implementation, and Management, Seventh Edition, Rob and Coronel. The Web as a Stateless System.

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Chapter 14

Chapter 14

Database Connectivity and Web Development

Database Systems: Design, Implementation, and Management, Seventh Edition, Rob and Coronel


The web as a stateless system
The Web as a Stateless System

  • Stateless system indicates that at any given time, Web server does not know status of any of clients communicating with it

    • Client and server computers interact in very short “conversations” that follow request-reply model

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Extensible markup language xml
Extensible Markup Language (XML)

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Document type definitions dtd and xml schemas
Document Type Definitions (DTD) and XML Schemas

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Document type definitions dtd and xml schemas continued
Document Type Definitions (DTD) and XML Schemas (continued)

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Document type definitions dtd and xml schemas continued1
Document Type Definitions (DTD) and XML Schemas (continued)

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Document type definitions dtd and xml schemas continued2
Document Type Definitions (DTD) and XML Schemas (continued)

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Xml presentation
XML Presentation

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Xml presentation continued
XML Presentation (continued)

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Xml presentation continued1
XML Presentation (continued)

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Xml applications
XML Applications

  • B2B exchanges

  • Legacy systems integration

  • Web page development

  • Database support

  • Database metadictionaries

  • XML databases

  • XML services

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Summary
Summary

  • Database connectivity refers to the mechanisms through which application programs connect and communicate with data repositories

  • Microsoft database connectivity interfaces are dominant players in the market and enjoy the support of most database vendors

  • Native database connectivity refers to the connection interface that is provided by the database vendor and is unique to that vendor

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Summary continued
Summary (continued)

  • Object Linking and Embedding for Database (OLE-DB) is a database middleware developed with the goal of adding object-oriented functionality for access to relational and nonrelational data

  • Database access through the Web is achieved through database-to-middleware software

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel


Summary continued1
Summary (continued)

  • ColdFusion is a Web application server that provides database access (among other services) to the Web

  • Extensible Markup Language (XML) facilitates the exchange of B2B and other data over the Internet

  • XML provides the semantics that facilitates the exchange, sharing, and manipulation of structured documents across organizational boundaries

Database Systems: Design, Implementation, & Management, 7th Edition, Rob & Coronel