Create a view based on a user-defined object type

Wednesday, July 1st, 2009

 

SQL>
SQL>
SQL> CREATE TABLE employees
  2  ( employee_id          number(10)      not null,
  3    last_name            varchar2(50)      not null,
  4    email                varchar2(30),
  5    hire_date            date,
  6    job_id               varchar2(30),
  7    department_id        number(10),
  8    salary               number(6),
  9    manager_id           number(6)
 10  );

Table created.

SQL>
SQL>
SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary,department_id ,manager_id)
  2                values ( 1001, ‘Lawson‘, ’lawson@g.com‘, ’01-JAN-2002‘,’MGR‘, 30000,1 ,1004);

1 row created.

SQL>
SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id ,manager_id)
  2                values ( 1002, ‘Wells‘, ’wells@g.com‘, ’01-JAN-2002‘, ’DBA‘, 20000,2, 1005 );

1 row created.

SQL>
SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id ,manager_id)
  2                 values( 1003, ‘Bliss‘, ’bliss@g.com‘, ’01-JAN-2002‘, ’PROG‘, 24000,3 ,1004);

1 row created.

SQL>
SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
  2                 values( 1004,  ‘Kyte‘, ’tkyte@a.com‘, SYSDATE-3650, ‘MGR‘,25000 ,4, 1005);

1 row created.

SQL>
SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
  2                 values( 1005, ‘Viper‘, ’sdillon@a .com‘, SYSDATE, ‘PROG‘, 20000, 1, 1006);

1 row created.

SQL>
SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id,manager_id)
  2                 values( 1006, ‘Beck‘, ’clbeck@g.com‘, SYSDATE, ‘PROG‘, 20000, 2, null);

1 row created.

SQL>
SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
  2                 values( 1007, ‘Java‘, ’java01@g.com‘, SYSDATE, ‘PROG‘, 20000, 3, 1006);

1 row created.

SQL>
SQL> insert into employees( employee_id, last_name, email, hire_date, job_id, salary, department_id, manager_id)
  2                 values( 1008, ‘Oracle‘, ’oracle1@g.com‘, SYSDATE, ‘DBA‘, 20000, 4, 1006);

1 row created.

SQL>
SQL>
SQL>
SQL>  create type employee_type is object(
  2          employee_id number,
  3          name varchar2(47),
  4          email varchar2(25)
  5    );
  6    /
 create type employee_type is object(

SQL>
SQL>  create or replace view ov_company_phone_book
  2      of employee_type
  3      with object oid ( employee_id ) as
  4        select e.employee_id,
  5               e.last_name,
  6               e.email
  7          from employees e
  8    /

SQL>
SQL> desc ov_company_phone_book;

SQL>
SQL> drop type employee_type;

SQL> drop table employees;

Table dropped.

SQL>

 

Use user-defined varray type as column type

Saturday, June 27th, 2009

 
SQL> create type myArrayType
  2  as varray(10) of number(12,2)
  3  /

Type created.

SQL>
SQL> create table t
  2  ( x int primary key, y myArrayType )
  3  /

Table created.

SQL>
SQL> drop table t;

Table dropped.

SQL> drop type myArrayType;

Type dropped.

SQL>
SQL>
SQL> –