Mega Code Archive
Reference column with user-defined type in select statement
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SQL>
SQL> create or replace type address_type as object
2 ( city varchar2(30),
3 street varchar2(30),
4 state varchar2(2),
5 zip number
6 )
7 /
Type created.
SQL> create or replace type person_type as object
2 ( name varchar2(30),
3 dob date,
4 home_address address_type,
5 work_address address_type
6 )
7 /
Type created.
SQL> create table people of person_type
2 /
Table created.
SQL> insert into people values ( 'Tom', '15-mar-1965',
2 address_type( 'R', '1 Street', 'Va', '45678' ),
3 address_type( 'R', '1 Way', 'Ca', '23456' ) );
1 row created.
SQL> /
1 row created.
SQL>
SQL> select name, p.home_address.city from people p;
NAME HOME_ADDRESS.CITY
------------------------------ ------------------------------
Tom R
SQL>
SQL> drop table people;
Table dropped.
SQL>
SQL> drop type person_type;
Type dropped.
SQL> drop type address_type;
Type dropped.
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