Puedes usar union para construir una tabla de ciudades y luego minus operador.
select 'Dallas' as city from dual union all
select 'Berlin' as city from dual union all
select 'Cracow' as city from dual union all
select 'Praha' as city from dual
minus
select city from address
En lugar de unión, puede usar el tipo predefinido odcivarchar2list , que acorta la sintaxis:
select column_value as city
from table(sys.odcivarchar2list('Dallas', 'Berlin', 'Cracow', 'Praha'))
minus
select city from address
... y en lugar de minus Puede usar uniones o not in o not exists .
Datos de prueba y resultados de ambas consultas:
create table address (id number, city varchar2(10));
insert into address values (1, 'Rome');
insert into address values (2, 'Dallas');
insert into address values (3, 'Cracow');
insert into address values (4, 'Moscow');
insert into address values (5, 'Liverpool');
insert into address values (6, 'Cracow');
insert into address values (7, 'Seoul');
CITY
------------
Berlin
Praha
