It's not really an error, though? Maybe your query returns no rows? What's on your middle tier?
If you selected more columns, you might get an error, as it won't fit. It will produce empty pdf.
There is a known issues page, if you're interested. But I don't think you'll find this on it.
Scott First Thanks for the reply... I did double check the Query and it does return a result set for the Reports. There is a Application Server as "middle tier"
Some of the Reports have many columns but I dwindled the columns down through "Actions" ----> "Select Columns" For Example PDF Does Print the Column Headings but Not the Data
Result Set of One of the Selected Reports Dwindled Down to 5 Columns
Download of the Result Set Above in PDF format "Column Headings" with No Data
Thanks Again... Please Advise Further
Thank You for the reply link to "Simple Example"
This is a Solution our Team uses to Problems with Page Items being in "Session State"
I did something similar to the Article as an Alternative to my above solution of setting Page Item Source.
I created an "On Page Load D.A." Set Value to "Force" Item into Session State (Screenshots Below)
I do have a Question in regards to apex_util.set_session_state which I will post in Discussion Forum
Do You have an Article or Examples of how to use this Utility ?
Thank You Again
It really depends on the context of it's use. I also wonder if you want to do your "set" as a page load dynamic action (after page is rendered and displayed in the browser), or as a computation (known while still rendering the page). The latter is usually the case, but it really depends.
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I'm not sure how you define "computation", but as the documentation describes, it allows you to assigned a value calculated in some manner, and this is usually done at some point during the render of the page, instead of a second round trip via a dynamic action once the page is displayed on the browser.