1.Write a script that uses an anonymous block to include two SQL statements coded as a transaction to delete the row with a customer ID of 8 from the Customers table. To do this, you must first delete all addresses for that order from the Addresses table.
If these statements execute successfully, commit the changes. Otherwise, roll back the changes.
2. Write a script that uses an anonymous block that includes these statements coded as a transaction:
— hard-code the id values for orders and order_items
INSERT INTO orders VALUES
(DEFAULT, 3, NOW(), ‘10.00’, ‘0.00’, NULL, 4,
‘American Express’, ‘378282246310005’, ’04/2013′, 4);
INSERT INTO order_items VALUES
(DEFAULT, order_id, 6, ‘415.00’, ‘161.85’, 1);
INSERT INTO order_items VALUES
(DEFAULT, order_id, 1, ‘699.00’, ‘209.70’, 1);
If these statements execute successfully, commit the changes. Otherwise, roll back the changes.