SELECT * FROM PRESU1 WHERE PROMCOD = '0004';

SELECT SUM(PARIMP) FROM PRESU1 WHERE PROMCOD = '0004';



CREATE TABLE NET08EXTRASRESERVAS
(
  EMIBCOD CHAR(10), 
  RENRO NUMBER(10),
  REREN NUMBER(3),
  CODIGOEXTRA NUMBER(5), 
  CONSTRAINT PKNET08EXTRASRESERVAS PRIMARY KEY (EMIBCOD,RENRO,REREN,CODIGOEXTRA), 
  CONSTRAINT FKNET08EXTRASRESERVAS_RESERVAS FOREIGN KEY (EMIBCOD,RENRO,REREN) REFERENCES RESERVAS (EMIBCOD,RENRO,REREN) 
);
