Minus between two different tables : MINUS « Set « Oracle PL/SQL Tutorial

1. Oracle PL/SQL Tutorial
2. Set
3. MINUS

SQL>
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>
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>
SQL> create table departments
  2  ( deptno NUMBER(2)
  3  , dname  VARCHAR2(10)
  4  , location VARCHAR2(20)
  5  , mgr    NUMBER(4)
  6  ) ;

Table created.

SQL>
SQL> insert into departments values (10,'ACCOUNTING','NEW YORK' ,  2);

1 row created.

SQL> insert into departments values (20,'TRAINING',  'VANCOUVER',  3);

1 row created.

SQL> insert into departments values (30,'SALES',     'CHICAGO',    4);

1 row created.

SQL> insert into departments values (40,'HR',        'BOSTON',     5);

1 row created.

SQL>
SQL>
SQL> select o.location from course_schedule o
  2  minus
  3  select d.location from departments d;

LOCATION
--------------------
DALLAS
SEATTLE


SQL>
SQL> drop table departments;

Table dropped.

SQL>
SQL> drop table course_schedule;

Table dropped.

SQL>