SQL> create type addressType as object
2 (Street VARCHAR2(50),
3 City VARCHAR2(25),
4 State CHAR(2),
5 Zip NUMBER);
6 /
SQL>
SQL> create type personType as object
2 (Name VARCHAR2(25),
3 Address addressType);
4 /
SQL>
SQL>
SQL> create or replace type personType as object
2 (Name VARCHAR2(25),
3 Address addressType);
4 /
SQL>
SQL>
SQL> create table myemp
2 (cid NUMBER,
3 Person personType);
SQL>
SQL>
SQL> insert into myemp values(1,personType('SomeName',addressType('StreetValue','CityValue','ST',11111)));
SQL>
SQL>
SQL> create index empview
2 on myemp(Person.Address.City);
SQL>
SQL>
SQL> drop table myemp;
SQL> drop type personType;
SQL> drop type addressType;
SQL>
SQL>
SQL>
SQL>