Can I reference a Summary Column in my sql query?

Question

Basically the subject asks it all. I have a very complex report that has many data linked queries from the "main" query. One of these data linked queries has a sub-query within it that references the primary key of the main query. I can't data link (I can, but it's useless) using this field as it's a sub-query that needs the link, and that link specifically. I've tried to create a Summary Column that gives me the "First" (and only, so it's safe) in order to reference it in the SQL block, but no go. I'm thinking this isn't even possible? Anyone have any ideas? Right now I'm referencing it as I would in a PL/SQL block (:CS_PK), but it's just treated as a parameter that's never passed. Doesn't read the summary column. Hmmm... I'm stuck.

Answer 1

Hi all... this report is still not completed. I've tried the summary column, and created a formula column that sets the user parameter to the primary key that's needed elsewhere. The report runs, no errors, but my best guess is that it's simply not reading that formula column. Here's my formula column:
function CF_1FORMULA0024 return Number is
begin
if :tblassessmentinst is null then
:tblassessmentinst := :CA_ASSESS_INST;
elsif :tblassessmentinst is NOT null then
:tblassessmentinst := :CA_ASSESS_INST; -- this WAS :tblassessmentinst but not working with prod ver, so delay
else
:tblassessmentinst :=0;
end if;
return(:tblassessmentinst);
end;
For testing, I display both the :tblassessmentinst on the report, as well as this formula column. The formula column always displays the correct number, but the :tblassessment only displays 1 (of many) records that need to be displayed. It's like it's not refreshing the formula column for each record? Again, still super stumped, so throw any ideas my way please.
Thanks again,
TL