Re: generating the average 6 months spend excluding first orders

David, I made a few changes to my query and looks like I am moving in the right direction
I have also attached my output.

WITH first_cust_cte AS
(
        SELECT min(ord_submitted_date)ord_date
                , persistent_key_str
        FROM orders
        group by persistent_key_str
)
SELECT o.persistent_key_str, o.ord_id
 FROM orders o INNER JOIN first_cust_cte c
 ON o.persistent_key_str = c.persistent_key_str
 WHERE ord_submitted_date = ord_date

Thanks,

Ron