1.select bookname from BOOK where bookId =1;select bookname from BOOKwhere price >= 20000;select sum(salePrice) from Orderswhere custId = (select custId from customer where name = '박지성');select count(*) from Orderswhere custid = (select custId from Customer where name = '박지성');select count(distinct publisher) from BOOK Bjoin orders O on o.bookId = B.bookIdwhere custid = (select custId from Custo..
