รัฐใดมีลูกค้ามากที่สุด?ไม่จำเป็นต้องใช้ตารางทั้งหมด
Which state has the most customers?It is not neccessary to use all the tables.
 customers:  customer_id [ number]  customer_type_code [ text]  address_line_1 [ text]  address_line_2 [ text]  town_city [ text]  state [ text]  email_address [ text]  phone_number [ text] 
SELECT state FROM customers GROUP BY state ORDER BY COUNT(*) LIMIT 1