Check object table column type
SQL>
SQL> create or replace type address_type
2 as object
3 ( city varchar2(30),
4 street varchar2(30),
5 state varchar2(2),
6 zip number
7 )
8 /
Type created.
SQL> create or replace type person_type
2 as object
3 ( name varchar2(30),
4 dob date,
5 home_address address_type,
6 work_address address_type
7 )
8 /
Type created.
SQL> create table people1 of person_type
2 /
Table created.
SQL> desc people1
Name Null? Type
----------------------------------------------------------------------------------- -------- --------------------------------------------------------
NAME VARCHAR2(30)
DOB DATE
HOME_ADDRESS ADDRESS_TYPE
WORK_ADDRESS ADDRESS_TYPE
SQL> select name, segcollength
2 from sys.col$
3 where obj# = ( select object_id
4 from user_objects
5 where object_name = 'PEOPLE1' )
6 /
NAME SEGCOLLENGTH
-------------------- ------------
SYS_NC_OID$ 16
SYS_NC_ROWINFO$ 1
NAME 30
DOB 7
HOME_ADDRESS 1
SYS_NC00006$ 30
SYS_NC00007$ 30
SYS_NC00008$ 2
SYS_NC00009$ 22
WORK_ADDRESS 1
SYS_NC00011$ 30
SYS_NC00012$ 30
SYS_NC00013$ 2
SYS_NC00014$ 22
14 rows selected.
SQL>
SQL> drop table people1;
Table dropped.
SQL> drop type person_type;
Type dropped.
SQL> drop type address_type;
Type dropped.
SQL> --
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