DROP USER madang CASCADE;CREATE USER madang IDENTIFIED BY madang DEFAULT TABLESPACE users TEMPORARYTABLESPACE temp PROFILE DEFAULT; GRANT CONNECT, RESOURCE TO madang;GRANT CREATE VIEW, CREATE SYNONYM TO madang; ALTER USER madang ACCOUNT UNLOCK; /* 여기서부터는 마당 계정으로 접속 */conn madang/madang; CREATE TABLE Book ( bookid NUMBER(2) PRIMARY KEY, bookname VARCHAR2(40), publisher VARCHAR2(40), price NUMBER(..