You done any type of experimentation with dynamic SQL in your procedures?

We have a form that accepts tons of input values from the web user which
eventually get translated into 1 SQL query to pull back the data-set the
user is looking for.  The problem is that nesting select statements slows
done the query, so in some cases, we create a callablestatement, generate
the list of IDs on the java side and simply make those part of the query
itself inline causing the query to run much faster.  There are other form
values that would reqiure we either append or not append additional
constraints to our SQL.

In my procedure, I could easily include all this logic and have a multitude
of IF/ELSIF/ENDIF statements which describe the logic but then I have
multiple copies of the SQL query to maintain on each IF-structure branch
which I would prefer not to do.  Is there a way where the string-append
approach can be used in Oracle so that after all the conditions have been
met, I simply open my cursor once to retreive the data in a PL/SQL
procedure?

Thanks
Chris

----- Original Message -----
From: "Grassi Fabio" <[EMAIL PROTECTED]>
To: "Lucas Gonzalez" <[EMAIL PROTECTED]>; "Struts Users
Mailing List" <[EMAIL PROTECTED]>
Sent: Thursday, June 24, 2004 5:31 AM
Subject: R: Struts and PL/SQL


Hi, in my application all DB access goes through PL/SQL stored procedures. I
use Oracle JPublisher to generate the Java classes that map PL/SQL packages.
It works fine enough.

Bye, Fabio.

> -----Messaggio originale-----
> Da: Lucas Gonzalez [mailto:[EMAIL PROTECTED]
> Inviato: mercoledì 23 giugno 2004 20:07
> A: Struts Users Mailing List
> Oggetto: Struts and PL/SQL
>
>
> Hi all!
>
> I´ve been using Struts a lot with EJB and Hibernate with no problems.
>
> But I always wondered if it´s possible to use an architecture
> that uses
> STRUTS and goes directly to PL/SQL for the database layer. I
> know it is
> possible in many way, but I would like to know if there is any special
> product or package that integrates with PL ( the only one I found is
> http://portalstudio.oracle.com/servlet/page?_pageid=473&_dad=o
ps&_schema=OPSTUDIO ) ... any pointers?

Thanks a lot
Lucas

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