คืนที่อยู่ของลูกค้า 10.ไม่จำเป็นต้องใช้ทุกตาราง
Return the address of customer 10.It is not neccessary to use all the tables.
 customer_addresses:  (address_id [ VARCHAR ] customer_id [ VARCHAR) ]
SELECT T1.address_details FROM addresses AS T1 JOIN customer_addresses AS T2 ON T1.address_id = T2.address_id WHERE T2.customer_id = 10