    1: CREATE TABLE LineItem (Invoice_Number INTEGER, Product_Code CHAR(7), Quantity INTEGER)
    2: INSERT INTO LineItem VALUES (11731, '116-064', 3)
    3: INSERT INTO LineItem VALUES (11731, '257-535', 1)
    4: INSERT INTO LineItem VALUES (11731, '643-119', 2)
    5: INSERT INTO LineItem VALUES (11732, '116-064', 10)
    6: INSERT INTO LineItem VALUES (11733, '116-064', 2)
    7: INSERT INTO LineItem VALUES (11733, '643-119', 1)
    8: SELECT * FROM LineItem