text: alter table padron add constraint padron_pk primary
  key (cedula)
  using index tablespace PADRON_IDX;
  
  alter table distritos add constraint distritos_pk primary key (codigo)
  using index tablespace PADRON_IDX;
  
  alter table padron add constraint padron_fk1 foreign key (codelect) references distritos;
  
  column ubicacion format a50;
  select codigo, provincia||'/'||canton||'/'||distrito ubicacion from distritos where codigo = 702001;
  
  
  CREATE VIEW VW_DISTRITOS AS 
  select codigo, 
         provincia||'/'||canton||'/'||distrito ubicacion 
  from distritos;
  
  
  create index padron_fk1_idx on padron (codelect) tablespace padron_idx;