CREATE TABLE Book_Stock(
book_id NUMBER, num_of_copies NUMBER
);

INSERT INTO Book_Stock values('1','10');
INSERT INTO Book_Stock values('2','10');
INSERT INTO Book_Stock values('3','10');
INSERT INTO Book_Stock values('4','10');
INSERT INTO Book_Stock values('5','10');
INSERT INTO Book_Stock values('6','10');
INSERT INTO Book_Stock values('7','10');