View the Exhibit and examine the structure of ORDERS and CUSTOMERS tables.
There is only one customer with the cust_last_name column having value Roberts. Which INSERT statement should be used to add a row into the ORDERS table for the customer whose CUST_LAST_NAME is Roberts and CREDIT_LIMIT is 600?
A. INSERT INTO orders
VALUES(1, ’10-mar-2007′, ‘direct’,
(SELECT customer_id
FROM customers
WHERE cust_last_name=’Roberts’ AND credit_limit=600), 1000);
B. INSERT INTO orders (order_id, order_data, order_mode,
(SELECT customer_id
FROM customers
WHERE cust_last_name=’Roberts’ AND credit_limit=600), order_total)
VALUES(1, ’10-mar-2007′, ‘direct’, &&customer_id, 1000);
C. INSERT INTO(SELECT o.order_id, o.order_date, o.order_mode, c.customer_id, o.order_total
FROM orders o, customers c
WHERE o.customer_id = c.customer_id
AND c.cust_last_name=’Roberts’ AND c.credit_limit=600 )
VALUES (1, ’10-mar-2007′, ‘direct’, (SELECT customer_id
FROM customers
WHERE cust_last_name=’Roberts’ AND credit_limit=600), 1000);
D. INSERT INTO orders (order_id, order_data, order_mode,
(SELECT customer_id
FROM customers
WHERE cust_last_name=’Roberts’ AND credit_limit=600), order_total)
VALUES (1, ’10-mar-2007′, ‘direct’, &customer_id, 1000).
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A