Re: Oracle Web Architecture Question, please help...

In article <36932CE6.10B4_at_comp.polyu.edu.hk>,   Jimmy <c6635500_at_comp.polyu.edu.hk> wrote:
> Hello all,
>
> I have a question about the 3T architecture in using Oracle.
> If I want to implement Oracle Forms 5.0 in web architecture, what are
> the product names (Oracle) of the three layers?

The front layer is just any web browser with a Java1.1 (or newer) JVM.

The Middle layer is the compination of an HTTP (web) server and an oracle EXE called the "Forms server listner" under the old Oracle Web Application Server 3. Under version 4, Renamed "Oracle Application Server"(minus the "web") the forms server listner is now just part of OAS (it used to stand alone).

The back layer is any ODBC compliant database. Realistically speaking, the back end is a SQL*Net (or Net8) connection to an Oracle database.

 I heard that the
> interface layer can be any web browser such as IE or netscape, the
> application server can be Oracle web server (with Forms server) and the
> database server is Oracle database. Is it correct?

Yes. Although I can't seem to get it to work with IE (and Netscape needs to be 4.06 or better)(According to Microsoft, IE4.01 is JVM1.1 compliant). If you look arround there are a lot of posts from people who can't use both browsers.

What platform Oracle web server is (NT or UNIX?)? Both, check www.oracle.com for a platforms supported list.

How about the Oracle database version?
> Currently we have Oracle database in V7.3.3. Is the Oracle database must
> be version 8 or above?

Nope. 7.3.2 works fine and I assume that any SQL*Net V2 compliant database will work (SQL*Net V2 came out with Oracle7.1)

>
> Thanks,
> Jimmy

No problem, Jimmy. I put some Oracle forms on the web this week, it didn't take much effort. They work really slick, except that I can't seem to get IE4 to work.

A couple of pointers:

1. If you just install the Forms Server, the install process doesn't install the EWT java classes, FORMS50_PATH, and TK25_ICON registry keys that you'll need. So install form builder too even if you won't use it.
2. In the %ORACLE_HOME%/tools/devdem20/guide21/ directory there is a file called d2k_web.htm. It's filled with all kinds of caveats (almost entirely about OS specific call-outs). Give it a read.

  Steven Ensslen
  Programmer/Analyst
  GDS & Associates Ltd

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