SELECT from the object-oriented table : Object Table « Object Oriented « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. Object Oriented
3. Object Table

SQL>
SQL> CREATE OR REPLACE TYPE addressType 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 addressType
  2  /

Table created.

SQL>
SQL> CREATE TABLE client (name VARCHAR2(20),
  2    address REF addressType scope is address_table);

Table created.

SQL>
SQL> DESC client;
 Name      Null?    Type
 ----------    
 NAME               VARCHAR2(20)
 ADDRESS            REF OF ADDRESSTYPE

SQL>
SQL> INSERT INTO client VALUES ('Jones',null);

1 row created.

SQL>
SQL>
SQL> SELECT *
  2  FROM client;

NAME                 ADDRESS
-------------------- --------------------------------------------------
Jones

SQL>
SQL>
SQL> UPDATE client SET address =
  2  (SELECT REF(aa)
  3  FROM address_table aa
  4  WHERE aa.city LIKE 'Mob%')
  5  WHERE name = 'Jones'
  6
SQL> select * from client;

NAME                 ADDRESS
-------------------- --------------------------------------------------
Jones

SQL>
SQL> drop table address_table;

Table dropped.

SQL> drop table client;

Table dropped.

SQL> drop type addresstype;

Type dropped.

SQL>
SQL>