Find the oldest record in a join between two tables
I have two tables. "Questions": A list of questions, "Results" The users results to these questions. 

    Table: Questions
       ID

    Table: Results
       ID 
       Created - When this record was added. 
       Q_ID - A FK to the Question table 


Example data 

    Table: Questions
       ID 
       ----
        1
        8
       15
       55

    Table: Results
       ID | Created | Q_ID 
       --------------------
        1 |   12:02 |    1 
        2 |   12:03 |   15 
        3 |   12:04 |    8  
 
I am looking for a query (or two) that will get me the following information. 

 - A question that does not have a result associated with it.
 - If all questions have results then find the question with the oldest result. 

This query should return question.id=55, because its is the only question that does not have a result. If question.id=55 did not exist then it would return question.id=1 as it has the oldest result to the question. 

Find the oldest record in a join between two tables
===

I have two tables. "Questions": A list of questions, "Results" The users results to these questions. 

    Table: Questions
       ID

    Table: Results
       ID 
       Created - When this record was added. 
       Q_ID - A FK to the Question table 


Example data 

    Table: Questions
       ID 
       ----
        1
        8
       15
       55

    Table: Results
       ID | Created | Q_ID 
       --------------------
        1 |   12:02 |    1 
        2 |   12:03 |   15 
        3 |   12:04 |    8  
 
I am looking for a query (or two) that will get me the following information. 

 - A question that does not have a result associated with it.
 - If all questions have results then find the question with the oldest result. 

This query should return question.id=55, because its is the only question that does not have a result. If question.id=55 did not exist then it would return question.id=1 as it has the oldest result to the question. 
