Use discrete attribute names : Reference Object « Object Oriented Database « Oracle PL / SQL

1. Oracle PL / SQL
2. Object Oriented Database
3. Reference Object

Use discrete attribute names

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> CREATE TABLE emp (empno   NUMBER(3),
  2                    name    VARCHAR2(20),
  3                    address ADDRESS_OBJ);

Table created.

SQL>
SQL>
SQL> INSERT INTO emp VALUES (101, 'Adam', ADDRESS_OBJ('1 A St.','Mobile','AL','36608'));

1 row created.

SQL>
SQL> SELECT * FROM emp;

     EMPNO NAME
---------- --------------------
ADDRESS(STREET, CITY, STATE, ZIP)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
       101 Adam
ADDRESS_OBJ('1 A St.', 'Mobile', 'AL', '36608')


SQL>
SQL>
SQL> drop table emp;

Table dropped.

SQL>
SQL>
SQL>
           
       

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