SQL>
SQL> CREATE TABLE compact_discs (
2 ID INTEGER NOT NULL,
3 title VARCHAR2(60),
4 artist VARCHAR2(60),
5 label VARCHAR2(60),
6 PRIMARY KEY (ID)
7 );
Table created.
SQL>
SQL> INSERT INTO compact_discs VALUES (100, 'W', 'B', 'A');
1 row created.
SQL>
SQL> CREATE TABLE cd_keywords (
2 cd_id INTEGER NOT NULL REFERENCES compact_discs (id),
3 keyword VARCHAR2(60) NOT NULL,
4 PRIMARY KEY (cd_id, keyword)
5 );
Table created.
SQL>
SQL> INSERT INTO cd_keywords VALUES (100, 'L');
1 row created.
SQL> INSERT INTO cd_keywords VALUES (100, 'M');
1 row created.
SQL>
SQL> drop table cd_keywords;
Table dropped.
SQL> drop table compact_discs;
Table dropped.
SQL>