Mega Code Archive
Construct user-defined type with subquery
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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 as select course, begindate, trainer
2 from course_schedule;
Table created.
SQL>
SQL> alter table o add (address addressType);
Table altered.
SQL>
SQL> update o
2 set o.address =
3 addressType('','','',
4 (select initcap(x.location)
5 from course_schedule x
6 where x.course = o.course
7 and x.begindate = o.begindate)
8 );
13 rows updated.
SQL>
SQL> drop table o;
Table dropped.
SQL> drop type addressType force;
Type dropped.
SQL>
SQL> drop table course_schedule;
Table dropped.
SQL>
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