VALUE function for object : Value Function « Object Oriented Database « Oracle PL / SQL

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Oracle PL / SQL » Object Oriented Database » Value Function 
VALUE function for object



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>  INSERT INTO address_table VALUES (ADDRESS_OBJ('1 A St.','Mobile','AL','36608'));

row created.

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

Table created.

SQL>
SQL> INSERT INTO client SELECT 'Walsh', REF(aaFROM address_table aa;

row created.

SQL>



SQL>
SQL> -- Address_table (which contains row objectsusing the VALUE function:
SQL>
SQL> SELECT VALUE(aa)
  2  FROM address_table aa;

VALUE(AA)(STREET, CITY, STATE, ZIP)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
ADDRESS_OBJ('1 A St.', 'Mobile', 'AL', '36608')

SQL>
SQL>
SQL>
SQL>
SQL>
SQL> drop table client;

Table dropped.

SQL>
SQL> drop table address_table;

Table dropped.

SQL>
SQL>
SQL>
           
       
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