select * from customer_details where customers_orders IN (get_customer_order_details ('STEPHEN'));
For above query shows Null. But we have order details for this query does not work.
get_customer_order_details ('STEPHEN') – This function Output as shows more than one output. ex: 28283,02839,92829
but does not shows output in this query.
whether IN clause suported for more than one values by using function. if not , any other suggestions?