實驗五 數據庫基礎教程（孫風棟）

(2)update books set retail = 30 where isbn='978-7-121-18619-8';

(3)update orders set shipdate= to_date('2013-2-2','YYYY-MM-DD') where order_id=1000;

(4)select title from books;

(5)select title from books where category is not null;

(6)select title,pubdate as PublicationDate from books;

(7)select customer_id, address from customers;

(8)select name,contact as ContactPerson, phone from publishers;

(9)select customer_id from orders;

(10)select * from orders where shipdate >= to_date('2013-3-1','YYYY-MM-DD');