Access APEX_APPLICATION.G_F01 in an SQL query for a report

Question

APEX 4.0.2.00.07
I've got a standard report with checkboxes. The SQL is along the lines of:
SELECT APEX_ITEM.CHECKBOX(1,empno,'CHECKED') " ",
       ename,
       job
FROM   empThen I have another report below this, which I want to drive based on the items checked in the first report. I know that the checkbox values will go into the APEX_APPLICATION.G_F01 collection. Normally these are accessed using pl/sql such as:
FOR I in 1..APEX_APPLICATION.G_F01.COUNT LOOP
    DELETE FROM emp WHERE empno = to_number(APEX_APPLICATION.G_F01(i));
END LOOP;But is there any way I can access the collection from the sql for my second report.
i.e. I want my sql to be something like:
SELECT empno, day_of_service
FROM   emp_timesheet
WHERE emp_no in <get access to the collection here>I was hoping that the check box collection would be available from the APEX_COLLECTIONS view, but it doesn't seem to be there.
Thanks,
John

Answer 1

John,
If the goal is to hold onto the checked values for some other processing then you could add them to a collection yourself.
create a process on your page which looks something like this:
This will create your collection if it does not exist or delete everything currently in it if it does exist and then insert your new selections.
DECLARE
   l_col_name varchar2(30) := 'EMP_SELECTED';
BEGIN
    apex_collection.create_or_truncate_collection(l_col_name);
    FOR I in 1..APEX_APPLICATION.G_F01.COUNT LOOP
        apex_collection.add_member(
            l_col_name,
            to_number(APEX_APPLICATION.G_F01(i))
    END LOOP;
END;your second query could look something like this:
SELECT empno, day_of_service
  FROM emp_timesheet
WHERE empno in (select C001 empno
                   from apex_collections ac
                  where ac.collection_name = 'EMP_SELECTED')
Edit
some people choose to create a view ontop of certain collection queries which will be reapeated throughout the application so you could also just
create view selected_emps as
select C001 empno
  from apex_collections ac
where ac.collection_name = 'EMP_SELECTED'   and your new query would look like:
SELECT empno, day_of_service
  FROM emp_timesheet
WHERE empno in (select empno
                   from selected_emps)Cheers,
Tyson Jouglet
Edited by: Tyson Jouglet on Apr 6, 2011 10:37 AM