Stored Procedure Does Not Run Properly When Called From Portlet

We have a simple Java portlet that calls a PL/SQL stored procedure which we wrote. The stored procedure sends a large number of emails to users in our corporation using the "utl_smtp" package. The stored procedure returns a count of the emails back to the Java portlet when it's finished. This number is displayed in the portlet.
Our problem:
The stored procedure functions as expected when run from a PL/SQL block in SQL*Plus, and the Java portlet calls the procedure properly when sending out a smaller number of emails (Less than 200 usually). When we get into a higher number of emails the procedure hangs when called from the portlet, but it STILL functions properly from SQL*Plus. It does not return the number of emails sent
and the Java portlet is unable to return a SQLException. Also, we have noticed that emails are sent at a much slower pace from the stored procedure when it's called from the portlet.

Any Ideas?

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create or replace procedure TEST_SP(pUPDSQL IN VARCHAR2,pRES OUT VARCHAR2)
AS
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DECLARE
emsg VARCHAR2(100);
BEGIN
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END;Edited by: BluShadow on 11-Dec-2012 15:47
added {noformat}{noformat} tags for readability. Please read {message:id=9360002} and learn to do this yourself in future.

... I'm facing an issue when the 2000th character on the insert SQL (pUPDSQL) is a single quote, ...Perhaps you need two single quotes? like:
runsql=runsql&"PUPDSQL := 'INSERT query...Values(..,..,,,''This value in two single quotes'',..,...)' "
... I'm connecting to a Oracle 11g database using Microsoft ODBC ...Dump windoze ODBC and better use the Oracle client ODBC.
:p

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Attachments:
vi.zip ‏87 KB

I just want to add some more details to Dan's answer. The subVI is acting exactly like you've coded it. The mistake is in understanding how subVIs work. When you call a subVI (or a function in any other language), you pass some parameters to it, the subVI does it's thing and returns values. the subVI does not accept new parameters from the calling VI until it returns to the caller and the caller runs the subVI again. In your case, you have a subVI with a while loop. You have some front panel control wired to the subVI's stop terminal. When first called, the value is false. So the subVI will keep running until the subVI's stop button becomes true but you cannot change it from main until the subVI finishes and returns so the subVI will never stop. As Dan says, the solution is pass references of front panel controls to the subVI and have the subVI monitor those references for changes and to update references to indicators on Main. You subVI does not need any front panel controls or indicators of it's own.

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[    All Docs     ]
http://otn.oracle.com/documentation/reports.html
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http://download.oracle.com/docs/pdf/B10314_01.pdf (pdf)
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Stored Procedure Does Not Run Properly When Called From Portlet

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