 |
|
Oracle Tips by Burleson |
Oracle
HTTP Server
The requirements for running Oracle HTML DB are:
an Oracle HTTP Server; and an Oracle database, version 9.2.0.3 or
above, with the HTML DB objects installed into the database. This
chapter covers the installation of Oracle HTTP Server on a computer
running the Windows operating system. Some notes to help with
UNIX/Linux are also included.
What is Oracle HTTP
Server?
Oracle HTTP Serveris the web server supplied by Oracle which is based on the Apache
HTTP Server. It is the process that will receive HTTP requests from
client browsers and submit them to the HTML DB components in an Oracle
database. Once the HTML DB components fulfill the request, the HTTP
Server will return the HTML to be rendered on the client browser.
In order for the HTTP Server and the HTML DB
components to communicate, there is an extension module named
mod_plsql. An extension module is an additional piece of software
which can be added to the HTTP Server to extend its functionality.
The mod_plsqlmodule is loaded by the HTTP Server and acts as a
middleman for communication between the Oracle HTTP Server and the
HTML DB components.
A brief description of the role of Oracle HTTP
Server and mod_plsql
goes like this, using Figure 1.1
as reference:
1.
The client computer issues an HTTP request.
(http://localhost:7777/pls/htmldb/htmldb)
2.
The Oracle HTTP Server receives the request and redirects the
request to mod_plsql
.
3.
mod_plsqlcommunicates the request to the HTML DB components in the
Oracle database.
4.
HTML DB generates an HTML web page and replies to mod_plsql.
5.
mod_plsqlpasses the HTML page to the Oracle HTTP Server
6.
Oracle HTTP Server replies to the client browser with the HTML
page.
Prior to Installation
The following should be verified prior to starting
the installation process:
-
Meet
one of the following Operating System requirements
-
Windows 2000 Professional or above with
service pack 3 or higher
-
Windows XP Professional
-
Windows 2003 for 32 bit systems
-
Linux versions: Red Hat Enterprise
version AS/ES 2.1 or above; or SUSE Enterprise Server version SLES-8
or above
-
Have available disk space of at least 165
MB
-
Be logged into the computer with
Administrator privileges for windows or as a member of the install
group on UNIX/Linux
The above book excerpt is from:
Easy
HTML-DB Oracle Application Express
Create
Dynamic Web Pages with OAE
ISBN 0-9761573-1-4
Michael Cunningham & Kent
Crotty
http://www.rampant-books.com/book_2005_2_html_db.htm
|
