Creating PL/SQL packages

Question

Hello,
The problem I am confronted with is reusing generated models.
In the process of DataMinig several steps are used: prepare data, Attribute selection (using AI), and building, testing and applying models.
If PL/SQL packages are used two problems occur:
First: Long, hand driven process of building:
Model generation in ODM,
PL/SQL package building in ODM and Export to SQL file,
importing package to DB, compiling and running.
I am sorry, but I don't understand why is it necessary to export PL/SQL packages in a file? As if these products aren't both Oracle products?
Second: If data (in time) changes and AI selects new attributes, then all next steps fail, since column names, and even some values, are hard coded! Therefore it is necessary to go trough the build and export process all over again. This really hurts.
Do you have a suggestion how to get around this problem?
I already considered using a SPSS Clementine, but since it is not an Oracle product I still believe, the original Oracle solution should give me some advantages.
Oh and another issue.
I tried using PL/SQL generator (Ver.: 10.1.3.0.17) in JDeveloper (ver.: 10.1.3.0.4), but it gave me an error:
java.lang.NoClassDefFoundError: oracle/dmt/dm4j/DM4JConnectionManager
     at oracle.dmt.dm4j.extension.CodeGenerator.invoke(Unknown Source)
     at oracle.ide.wizard.WizardManager.invokeWizard(WizardManager.java:310)
     at oracle.ide.wizard.WizardManager$2.run(WizardManager.java:358)
     at oracle.ide.util.IdeUtil.invokeAfterRepaint(IdeUtil.java:1093)
     at oracle.ide.wizard.WizardManager$1.run(WizardManager.java:366)
     at oracle.ide.util.IdeUtil$1$1.run(IdeUtil.java:1073)
     at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:209)
     at java.awt.EventQueue.dispatchEvent(EventQueue.java:461)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:242)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:163)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:157)
     at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:149)
     at java.awt.EventDispatchThread.run(EventDispatchThread.java:110)
Thanks for the reply,
Igor

Answer 1

Hi,
The code generation available in ODMr would allow you to deploy the build, apply or test process as generated code.
I am not sure what your application goal is, but if you simply want to deploy a model be used in an apply process that is rather straight forward.
You would build the model using ODMr. Then create an Apply Activity, again using ODMr.
The Apply Activity can then be used to generate code (pl/sql) using the JDev RTM release (10.1.3.2 or above). We will also have a version that will work with SQLDev shortly.
The generated code is immediately placed into the db for you.
If you want to score in a separate db you can either create a db link from that db or move both the model and the apply pl/sql code to the new db (using dba utilities).
If you want to rebuild a model, where you would add/remove attributes, change transformations etc. then you will have to regenerate the code.
If you simply want to rebuild the model without changing any transformations and settings you could also deploy the model build generated code.
As for the JDev failure, we are going to look into that. Have you tried the JDev 10.1.3.3 release available on the Oracle web site?
Thanks, Mark