Task: Text to Code
Input (English): Step 1: For each row in Customers table, find the corresponding rows in Customer_Orders table.
Step 2: find customer_name, date_became_customer of the results of step 1 whose order_status equals Delivered
Output (English): SELECT T1.customer_name , T1.date_became_customer FROM Customers AS T1 JOIN Customer_Orders AS T2 ON T1.customer_id = T2.customer_id WHERE T2.order_status = "Delivered"