Are Application Items Bound Items

Question

I am trying to build a collection with a Before Header page process. Then I use that collection to build a report.
One of the parameters is that some fieldx is between some dateA and some dateB. I would like to use the values of two application items, say Fxxx_StartDate and Fxx_EndDate as the date parameters in the query. When I do use the application items, I get
ORA-20104: create_collection_from_query_b Error:ORA-20104: create_collection_from_query ExecErr:ORA-01008: not all variables bound
when the page tries to display.
If I use sysdate - 30 and sysdate as the date parameters the collection builds just fine and the page displays as it should.
I guess my question is what is a bound variable and is there something I can do to make some variable 'bound'?

Answer 1

I'm not entirely sure of the answer to the question "are application items bound items?". In the sense that page items can be bound to specific columns of a specific table that are used for built-in 'FETCH' and 'PROCESS' handling, I would say no. They're not bound in that sense.
Application items only get values via a specific assignment action - which you need to write and place in the appropriate place for your situation.
As always, just my 2 cents.
Earl