Create table with ref : Ref « Object Oriented Database « Oracle PL / SQL

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

Create table with ref

 


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> INSERT INTO client SELECT 'Walsh', REF(aa) FROM address_table aa;

0 rows created.

SQL>
SQL> -- SELECTing Individual Columns in TCROs
SQL>
SQL>
SQL> SELECT c.name, c.address.city FROM client c;

no rows selected

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

Table dropped.

SQL>
SQL> drop table address_table;

Table dropped.

SQL>
SQL>
           
         
  

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