Mega Code Archive
Describe table with user-defined type as column type
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SQL>
SQL> create table course_schedule
2 ( course VARCHAR2(6)
3 , begindate DATE
4 , trainer NUMBER(4)
5 , location VARCHAR2(20)) ;
Table created.
SQL>
SQL> insert into course_schedule values ('SQL',date '1999-04-12',1,'VANCOUVER' );
1 row created.
SQL> insert into course_schedule values ('OAU',date '1999-08-10',2,'CHICAGO');
1 row created.
SQL> insert into course_schedule values ('SQL',date '1999-10-04',3,'SEATTLE');
1 row created.
SQL> insert into course_schedule values ('SQL',date '1999-12-13',4,'DALLAS' );
1 row created.
SQL> insert into course_schedule values ('JAV',date '1999-12-13',5,'SEATTLE');
1 row created.
SQL> insert into course_schedule values ('XML',date '2000-02-03',6,'VANCOUVER' );
1 row created.
SQL> insert into course_schedule values ('JAV',date '2000-02-01',7,'DALLAS' );
1 row created.
SQL> insert into course_schedule values ('PLS',date '2000-09-11',8,'VANCOUVER' );
1 row created.
SQL> insert into course_schedule values ('XML',date '2000-09-18',NULL,'SEATTLE');
1 row created.
SQL> insert into course_schedule values ('OAU',date '2000-09-27',9,'DALLAS' );
1 row created.
SQL> insert into course_schedule values ('ERM',date '2001-01-15',10, NULL );
1 row created.
SQL> insert into course_schedule values ('PRO',date '2001-02-19',NULL,'VANCOUVER' );
1 row created.
SQL> insert into course_schedule values ('RSD',date '2001-02-24',8,'CHICAGO');
1 row created.
SQL>
SQL> create type addressType as object
2 ( street varchar2(20)
3 , nr varchar2(5)
4 , pcode varchar2(6)
5 , city varchar2(20)
6 ) ;
7 /
Type created.
SQL>
SQL> describe addressType
Name Null? Type
----------------------------------------- -------- ----------------------------
STREET VARCHAR2(20)
NR VARCHAR2(5)
PCODE VARCHAR2(6)
CITY VARCHAR2(20)
SQL>
SQL> select type_name, typecode from user_types;
TYPE_NAME TYPECODE
------------------------------ ------------------------------
DEBUG_O OBJECT
NUMBERLIST_T COLLECTION
ADDRESS2 OBJECT
ZIP_CODE OBJECT
NUM_VARRAY COLLECTION
NUM_TABLE COLLECTION
ADD_LIST COLLECTION
HOME_ADD_LIST COLLECTION
SYS_PLSQL_14797_54_1 COLLECTION
SYS_PLSQL_14797_DUMMY_1 COLLECTION
SYS_PLSQL_14797_9_1 OBJECT
VCARRAY COLLECTION
STRINGS_NT COLLECTION
RIVER OBJECT
WATERFALL OBJECT
SQLMONTH_TABLETYPE COLLECTION
ORD_TYPE OBJECT
ORD_TABLE COLLECTION
DTARRAY COLLECTION
TYPE_NAME TYPECODE
------------------------------ ------------------------------
NMARRAY COLLECTION
EMP_T OBJECT
ASCII_TABLE_TYPE OBJECT
PHONE_NUM_REC_TYPE OBJECT
NUMBERVARRAY COLLECTION
ADDRESSTYPE OBJECT
25 rows selected.
SQL>
SQL> create table o
2 as
3 select course, begindate, trainer
4 from course_schedule;
Table created.
SQL>
SQL> alter table o add (address addressType);
Table altered.
SQL>
SQL> set describe depth 1
SQL> describe o
Name Null? Type
----------------------------------------- -------- ----------------------------
COURSE VARCHAR2(6)
BEGINDATE DATE
TRAINER NUMBER(4)
ADDRESS ADDRESSTYPE
SQL> set describe depth 2
SQL> describe o
Name Null? Type
----------------------------------------- -------- ----------------------------
COURSE VARCHAR2(6)
BEGINDATE DATE
TRAINER NUMBER(4)
ADDRESS ADDRESSTYPE
STREET VARCHAR2(20)
NR VARCHAR2(5)
PCODE VARCHAR2(6)
CITY VARCHAR2(20)
SQL>
SQL> drop view o;
drop view o
*
ERROR at line 1:
ORA-00942: table or view does not exist
SQL> drop table o;
Table dropped.
SQL> drop type addressType force;
Type dropped.
SQL> drop table course_schedule;
Table dropped.
SQL>
SQL>
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