Oracle Web Applications: PL-SQL Developer's Introduction by Andrew Odewahn

By Andrew Odewahn

Oracle8i, Oracle's "Internet database," introduces quite a few net improvement instruments that reach conventional database strategies to internet content material. With Oracle's DBMS, now you can construct internet know-how on most sensible of a relational database, instead of on a conventional filesystem. This strategy treatments the various difficulties that experience bogged down the skill of corporations to construct new internet purposes and to place their legacy functions on the internet. Many builders are intimidated via the large array of latest applied sciences in Oracle8i. And but, they're stressed to construct complicated internet purposes instantly. This publication presents the data you must begin development those purposes instantaneously. it's a compact, easy-to-read consultant to PL/SQL, HTML, XML, WebDB,and Oracle program Server (OAS). It additionally covers the applications within the PL/SQL toolkit and exhibits numerous absolutely learned net purposes. This booklet presents the jump-start you must to make the transition from conventional programming to the improvement of worthy internet functions for Oracle8i. Even those that understand not anything approximately HTML, PL/SQL, or Oracle's different instruments will how one can create basic internet functions in a question of days. The ebook additionally covers internet improvement for prior Oracle models (Oracle8 and Oracle7).

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The first part, the type, identifies the resource's general format, such as text, image, or audio. The second part, the subtype, identifies the resource's specific data format. For example, the subtypes for the image type include gif and jpeg. The type and subtype are delimited with a slash (/ ); for example, a picture's full MIME type could be image/gif or image/jpeg. The default for WebDB and OAS is text/html. Browsers must be configured to handle each MIME type. Almost all browsers can display text/plain, text/html, and image/jpeg documents without any extra configuration.

Audio, video, and image data are all compatible with popular authoring tools like Symantec Visual Page or FrontPage, via the interMedia clipboard. 3 Spatial data interMedia's Spatial cartridge provides support for a range of geocoding systems that specify a latitude and longitude with a specific piece of information, such as a zip code or an address. This information can be used to calculate distances between locations or to represent information in geographic information systems (GIS). For example, using this information, you could create a query system for a bank that returned the ATM locations closest to a specific address.

It is the specific classification of the message; additionally, it implies a specific action that must be taken based on the message. 3 Content Delivery Model Copyright (c) 2000 O'Reilly & Associates. All rights reserved. ). Although the specific details vary, OAS and WebDB follow the same basic process model to deliver web content and rely on a virtual schema mapping called a Database Access Descriptor (DAD) to access the database. A DAD is similar to a virtual directory mapping; it creates a name, used within a URL, that links the request to a specific schema in the database.

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