Thanks for the clarification, Vlad.
Having to build-in sort & filtering will not be ideal, so is there a way to implement the following query? I cannot seem to get any standard query, rule query, or SQL query to work.
Note: There is a one-to-many relationship setup in the BO (one Question can have many Responses).
SELECT Questions.* FROM MY_APPDB_QUESTIONS AS Questions
LEFT JOIN MY_APPDB_RESPONSES AS Responses
ON Questions.ID=Responses.QuestionsLink_RID
WHERE (Responses.QuestionID IS NULL)