123.View the Exhibits and examine the structures of the PRODUCTS, SALES, and CUSTOMERS

123.View the Exhibits and examine the structures of the PRODUCTS, SALES, and CUSTOMERS

tables.

You need to generate a report that gives details of the customer's last name, name of the product, and

the quantity sold for all customers in 'Tokyo' .

Which two queries give the required result? (Choose two.)

A.SELECT c.cust_last_name,p.prod_name, s.quantity_sold FROM sales s JOIN products p

USING(prod_id) JOIN customers c USING(cust_id)

WHERE c.cust_city='Tokyo';

B.SELECT c.cust_last_name, p.prod_name, s.quantity_sold FROM products p JOIN sales s JOIN customers c

ON(p.prod_id=s.prod_id) ON(s.cust_id=c.cust_id)

WHERE c.cust_city='Tokyo';

C.SELECT c.cust_last_name, p.prod_name, s.quantity_sold FROM products p JOIN sales s

ON(p.prod_id=s.prod_id) JOIN customers c ON(s.cust_id=c.cust_id)

AND c.cust_city='Tokyo';

D.SELECT c.cust_id,c.cust_last_name,p.prod_id, p.prod_name, s.quantity_sold FROM products p JOIN sales s

USING(prod_id) JOIN customers c USING(cust_id)

WHERE c.cust_city='Tokyo';

答案：AC

解析：B这里不能两个on和两个join直接连着用,c选项using中的prod_id和cust_id这两个字段，在select中

不能加列前缀