PL/SQL as front end.....

hi....
Where we use PL/SQL as front end and How to use...? What package used to create the front end..... Give me a sample example... or Give me site link to know more about this.....
Thanks
S.Ashokkumar.

> I think that is not entirely true. You can use Developer 9i where you can use
the Pl/SQL code to construct a full capability of a web page using this
PSP? PL/SQL Server Pages?
PL/SQL (as used in PSP and APEX) is a server-side language. It has not User Interface abilities.
This means that it
- cannot display a form on the screen as it is not attached to a monitor/display
- cannot read user keyboard input
- cannot read user mouse input
PL/SQL cannot "talk" to the end-user as it lacks the UI (User Interface) component.
The only way for it to "talk" to an end-user is to communicate with the actual UI application of the user - and then that UI app can interact with the user, interface with the monitor, keyboard and mouse.
So how does PL/SQL communicate with the UI? Two basic methods.
Traditional client-server. The UI is a Delphi/Powerbuilder/VB application. It uses an Oracle Client Driver. It connects to Oracle, executes the PL/SQL code and that code returns data to the UI. The UI renders that data.
The UI in traditional client-server is a tty (typewriter) device - meaning that each and every key or mouse input can be immediately send (if needed) to the server. E.g. typing text into a combo box can result in a SQL query per keystroke to list the matching values in the database for that filter.
The UI in traditional client-server also has state. It opens a connection to Oracle. It uses and re-uses that connection. It can lock rows. It can run DML on those rows. It can commit and rollback those locks.
Thin client-server. The UI is a browser. It has not Oracle Client Driver (or need any other Oracle client software). The UI makes a HTTP (or HTTPS) call to a web server that runs an "Oracle Interface Module". Via this module, a PL/SQL call is made. PL/SQL code writes to a buffer area. The code terminates. This buffer is streamed via the web server to the client UI. The web browser receives this HTTP stream and process it. It renders a web page, graphics, etc.
The "Oracle Interface Module" is either:
- a module called MOD_PLSQL used in Apache Web Server
- a web servlet defined in the EPG web server in Oracle's XML DB
The UI client is a block device. The user has to enter all the data on the UI. And then submit it. The UI gets a complete screen to render when it receives the data from PL/SQL via the web server.
The UI client is stateless. It uses a new or different Oracle session each time it talks to the database. It cannot lock rows like in the traditional client-server. It needs to use optimistic locking. PL/SQL code needs to be written to manage the state data for the client. Etc.
PL/SQL Server Pages are executed via a web server module - the PL/SQL code resides inside HTML pages. This code creates a dynamic HTML pages. This page is send to the web browser.
Thus, PL/SQL cannot interact with the user. It has to interact with the UI. You cannot use PL/SQL itself as the front-end as it does not run on the client. The front-end has to be an application or browser. PL/SQL needs to send data to that. That UI renders that data and interact with the client. Not PL/SQL.

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{58B30261-65B6-5F6A-BC50-60F85782D052}
{DB4B76B0-2510-5BF8-A7B1-8B37BD3AA7B9}
{917CC217-966B-56AC-A912-97BA64BA13EB}
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Thanks,
VH.

Hi,
Please try to reset registrar state:
http://tsoorad.blogspot.in/2013/04/lync-2013-ee-pool-wont-start.html
Note: Microsoft is providing this information as a convenience to you. The sites are not controlled by Microsoft. Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information found there. Please make
sure that you completely understand the risk before retrieving any suggestions from the above link.
Kent Huang
TechNet Community Support

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