|
SQL>
SQL> CREATE OR REPLACE TYPE PartType AS OBJECT
2 (PartType_id VARCHAR2(10),
3 description VARCHAR2(30))
4 /
Type created.
SQL>
SQL> CREATE OR REPLACE TYPE PartType_Table AS TABLE OF PartType
2 /
Type created.
SQL>
SQL> CREATE OR REPLACE TYPE Hard_Disk AS OBJECT
2 (hd_id VARCHAR2(10),
3 capacity VARCHAR2(20),
4 controller PartType_Table)
5 /
Type created.
SQL>
SQL> CREATE OR REPLACE TYPE Hard_Disk_Table AS TABLE OF Hard_Disk
2 /
Type created.
SQL>
SQL> CREATE TABLE PC
2 (pc_id VARCHAR2(10) NOT NULL,
3 hd Hard_Disk_Table,
4 PRIMARY KEY (pc_id))
5 NESTED TABLE hd STORE AS HD_tab
6 (NESTED TABLE controller STORE AS PartType_tab);
Table created.
SQL>
SQL> drop type PartType force;
Type dropped.
SQL> drop type PartType_Table force;
Type dropped.
SQL> drop type Hard_Disk force;
Type dropped.
SQL> drop type Hard_Disk_Table force;
Type dropped.
SQL> drop table PC;
Table dropped.
|