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SQL> -- DEREF (Dereference) the Row Addresses
SQL>
SQL> CREATE OR REPLACE TYPE address_obj as OBJECT(
2 street VARCHAR2(20),
3 city VARCHAR2(20),
4 state CHAR(2),
5 zip CHAR(5));
6 /
Type created.
SQL>
SQL> CREATE TABLE address_table OF ADDRESS_OBJ;
Table created.
SQL>
SQL> CREATE TABLE client (name VARCHAR2(20),
2 address REF address_obj scope is address_table);
Table created.
SQL>
SQL>
SQL>
SQL> INSERT INTO client VALUES ('Jones',null);
1 row created.
SQL>
SQL> SELECT * FROM client;
NAME ADDRESS
--------- --------------------------------------------------
Jones
SQL>
SQL> SELECT name, DEREF(address) FROM client;
NAME
---------
DEREF(ADDRESS)(STREET, CITY, STATE, ZIP)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Jones
SQL>
SQL>
SQL> drop table client;
Table dropped.
SQL>
SQL> drop table address_table;
Table dropped.
SQL>
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