Create a new type and add it to a table : Object Column « Object Oriented « Oracle PL/SQL Tutorial






SQL>
SQL> create table emp
  2  ( empno      NUMBER(4)    constraint E_PK primary key
  3  , ename      VARCHAR2(8)
  4  , init       VARCHAR2(5)
  5  , job        VARCHAR2(8)
  6  , mgr        NUMBER(4)
  7  , bdate      DATE
  8  , sal        NUMBER(6,2)
  9  , comm       NUMBER(6,2)
 10  , deptno     NUMBER(2)    default 10
 11  ) ;

Table created.

SQL> insert into emp values(1,'Tom','N',   'TRAINER', 13,date '1965-12-17',  800 , NULL,  20);

1 row created.

SQL> insert into emp values(2,'Jack','JAM', 'Tester',6,date '1961-02-20',  1600, 300,   30);

1 row created.

SQL> insert into emp values(3,'Wil','TF' ,  'Tester',6,date '1962-02-22',  1250, 500,   30);

1 row created.

SQL> insert into emp values(4,'Jane','JM',  'Designer', 9,date '1967-04-02',  2975, NULL,  20);

1 row created.

SQL> insert into emp values(5,'Mary','P',  'Tester',6,date '1956-09-28',  1250, 1400,  30);

1 row created.

SQL> insert into emp values(6,'Black','R',   'Designer', 9,date '1963-11-01',  2850, NULL,  30);

1 row created.

SQL> insert into emp values(7,'Chris','AB',  'Designer', 9,date '1965-06-09',  2450, NULL,  10);

1 row created.

SQL> insert into emp values(8,'Smart','SCJ', 'TRAINER', 4,date '1959-11-26',  3000, NULL,  20);

1 row created.

SQL> insert into emp values(9,'Peter','CC',   'Designer',NULL,date '1952-11-17',  5000, NULL,  10);

1 row created.

SQL> insert into emp values(10,'Take','JJ', 'Tester',6,date '1968-09-28',  1500, 0,     30);

1 row created.

SQL> insert into emp values(11,'Ana','AA',  'TRAINER', 8,date '1966-12-30',  1100, NULL,  20);

1 row created.

SQL> insert into emp values(12,'Jane','R',   'Manager',   6,date '1969-12-03',  800 , NULL,  30);

1 row created.

SQL> insert into emp values(13,'Fake','MG',   'TRAINER', 4,date '1959-02-13',  3000, NULL,  20);

1 row created.

SQL> insert into emp values(14,'Mike','TJA','Manager',   7,date '1962-01-23',  1300, NULL,  10);

1 row created.

SQL>
SQL>
SQL>
SQL> create table e
  2  as
  3  select empno, ename, init, mgr, deptno
  4  from   emp;


SQL>
SQL>
SQL> create or replace type numberlist_t
  2  as varray(4) of varchar2(20);
  3  /

Type created.

SQL>
SQL> column numlist format a60
SQL>
SQL> alter table e add (numlist numberlist_t);

Table altered.

SQL>
SQL> describe e
 Name                                      Null?    Type
 ----------------------------------------- -------- ----------------------------
 EMPNO                                              NUMBER(4)
 ENAME                                              VARCHAR2(8)
 INIT                                               VARCHAR2(5)
 JOB                                                VARCHAR2(8)
 MGR                                                NUMBER(4)
 BDATE                                              DATE
 SAL                                                NUMBER(6,2)
 COMM                                               NUMBER(6,2)
 DEPTNO                                             NUMBER(2)
 NUMLIST                                            NUMBERLIST_T

SQL>
SQL>
SQL> select empno, numlist from e;

SQL>
SQL>
SQL> drop table e;

Table dropped.

SQL> drop table emp;

Table dropped.

SQL>








32.7.Object Column
32.7.1.Using Object Types to Define Column Objects and Object Tables
32.7.2.You can use an object type to define an entire table, and the table is known as an object table.
32.7.3.The Object Type Column Objects
32.7.4.Loading the 'row object' Table
32.7.5.SELECT with a WHERE Clause
32.7.6.UPDATE Data in a Table of Row Objects
32.7.7.Using UPDATE with TYPEed Columns
32.7.8.Query a table with user-defined column type
32.7.9.Use * to reference all columns from a table
32.7.10.Use 'table of custom type' as table column type
32.7.11.Nested varray and table collection column
32.7.12.Create type and use it as table column
32.7.13.Nested type Column
32.7.14.Create a new type and add it to a table