Call print apex_util.get_print_document() with page item values

Hi all
I ran into an issue that very frustrated as it sounds so simple.
I'm in Apex 3.1.
My database has table TAB_CLASSES, TAB_STUDENT
My application has page 1 with P1_SID is student_ID
I had an simple report query name Class_query, show all classes that a student attends
select * from TAB_CLASSES where SID = :P1_SID;
I also select option "include application and session information"
I had report template Class_template
In my application, I have a process tried to generate report list classes for all students.
l_report blob;
for x in (select * from TAB_STUDENT)
loop
:P1_SID := x.SID;
l_report := apex_util.get_print_document (
p_application_id => :APP_ID,
p_report_query_name => 'Class_query',
p_report_layout_name => 'Class_template',
p_report_layout_type => 'rtf',
p_document_format => 'pdf'
insert all the l_report into database with SID as a part of l_report name (*)
end loop;
After this, I got multiple of l_report blob in database, number of report is exactly number of student in the TAB_STUDENT table. The problem is that every report looks the same, and it got the information of only first student
I guessed it did not pass the item value (P1_SID) every time it call the get_print_document, but it still shows in the report name (*)
Please help me. Thanks for any idea.
Teiv
Edited by: teiviag on Mar 10, 2010 7:16 AM

This post had the same problem with me
[ http://forums.oracle.com/forums/thread.jspa?threadID=663186&start=0&tstart=0|http://forums.oracle.com/forums/thread.jspa?threadID=663186&start=0&tstart=0]
Thanks for the post of Marc, about how variables are binding and calling by process, I changed my app design to have a sp to print and store the pdf file. Then in my app, I just called the sp and passed the P1_SID. It worked.
Thanks.
Edited by: teiviag on Mar 10, 2010 10:49 AM
Edited by: teiviag on Mar 10, 2010 10:50 AM
Edited by: teiviag on Mar 10, 2010 10:50 AM

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Thanks,
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