as, PostgreSQL - rextester

as

DROP TABLE IF EXISTS ENVIO_NACIONAL;
DROP TABLE IF EXISTS NACIONAL;
DROP TABLE IF EXISTS INTERNACIONAL;
DROP TABLE IF EXISTS PAQUETE;
DROP TABLE IF EXISTS CONDUCTOR_CAMION;
DROP TABLE IF EXISTS CONDUCTOR;
DROP TABLE IF EXISTS CAMION;
DROP TABLE IF EXISTS RUTA;
DROP TABLE IF EXISTS CIUDAD;
DROP TABLE IF EXISTS AEROLINEA;

CREATE TABLE AEROLINEA(
	id_Aerolinea integer,
	Nombre_aerolinea varchar(50) NOT NULL,
	CONSTRAINT id_Aerolinea_PK PRIMARY KEY (id_Aerolinea)
);

CREATE TABLE CIUDAD(
	id_Ciudad integer,
	Nombre_Ciudad varchar(50) NOT NULL,
	CONSTRAINT id_Ciudad_PK PRIMARY KEY (id_Ciudad)
);

CREATE TABLE RUTA(
	id_Ruta integer,
	Nombre_Ruta varchar(50) NOT NULL,
	CONSTRAINT id_Ruta_PK PRIMARY KEY (id_Ruta)
);

CREATE TABLE CAMION (
	Placa varchar(8) NOT NULL,
	Ciudad_Resguardo varchar(50) NOT NULL,
	Carga_Maxima float NOT NULL,
	Carga_Minima float NOT NULL,
	CONSTRAINT Placa_PK PRIMARY KEY (Placa)
);

CREATE TABLE CONDUCTOR (
	id_Conductor integer,
	RFC varchar(15) NOT NULL,
	id_Ruta integer NOT NULL,
	Direccion varchar(50) NOT NULL, 
	Nombre_Conductor varchar(50) NOT NULL,
	CONSTRAINT idConductor_PK PRIMARY KEY (id_Conductor)
);

CREATE TABLE CONDUCTOR_CAMION (
	Placa varchar(8) NOT NULL, 
	id_Conductor integer NOT NULL,
	Fecha DATE NOT NULL, 
	CONSTRAINT UK_Placa_idConductor_Fecha UNIQUE(Placa,id_Conductor,Fecha)
);

CREATE TABLE PAQUETE (
	id_Paquete integer,
	Direccion varchar(100) NOT NULL, 
	Peso_kg float NOT NULL,
	Destinatorio varchar(50) NOT NULL, 
	Tipo_paquete varchar(1) NOT NULL,
	CONSTRAINT CHK_Tipo_paquete CHECK (Tipo_paquete LIKE ('I') OR Tipo_paquete LIKE ('N')),
	CONSTRAINT id_Paquete_PK PRIMARY KEY (id_Paquete)
);

CREATE TABLE INTERNACIONAL (
	id_Paquete_Internacional varchar(5) NOT NULL,
	id_Paquete integer NOT NULL,
	id_Ciudad integer NOT NULL,
	id_Aerolinea integer NOT NULL,
	Fecha_Entrega DATE NOT NULL,
	CONSTRAINT CHK_id_Paquete_Internacional CHECK (id_Paquete_Internacional LIKE '_____'),
	CONSTRAINT id_Paquete_Internacional_PK PRIMARY KEY (id_Paquete_Internacional)
);

CREATE TABLE NACIONAL (
	id_Paquete_Nacional varchar(5) NOT NULL,
	id_Paquete integer NOT NULL,
	id_Conductor integer, 
	RFC varchar(15),
	id_Ruta integer,
	Ciudad_Destino varchar(50) NOT NULL, 
	CONSTRAINT CHK_id_Paquete_Nacional CHECK (id_Paquete_Nacional LIKE '_____'),
	CONSTRAINT id_Paquete_Nacional_PK PRIMARY KEY (id_Paquete_Nacional)
);

CREATE TABLE ENVIO_NACIONAL (
	id_Paquete_Nacional varchar(5) NOT NULL,
	Ciudad_Destino varchar(50) NOT NULL,
	Num_Paquetes integer NULL DEFAULT 0,
	CONSTRAINT id_Paquete_E_PK PRIMARY KEY (id_Paquete_Nacional)
);

-- Llaves Foraneas para la tabla Conductor Camión 
ALTER TABLE CONDUCTOR_CAMION ADD CONSTRAINT Placa_FK FOREIGN KEY (Placa) REFERENCES CAMION
ON UPDATE CASCADE ON DELETE CASCADE;
ALTER TABLE CONDUCTOR_CAMION ADD CONSTRAINT idConductor_C_FK FOREIGN KEY (id_Conductor) REFERENCES CONDUCTOR
ON UPDATE CASCADE ON DELETE CASCADE;

-- Llaves Forenaeas para la tabla Internacional 
ALTER TABLE INTERNACIONAL ADD CONSTRAINT id_Paquete_I_FK FOREIGN KEY (id_Paquete) REFERENCES PAQUETE
ON UPDATE CASCADE ON DELETE CASCADE;
ALTER TABLE INTERNACIONAL ADD CONSTRAINT id_Ciudad_FK FOREIGN KEY (id_Ciudad) REFERENCES CIUDAD
ON UPDATE CASCADE ON DELETE CASCADE;
ALTER TABLE INTERNACIONAL ADD CONSTRAINT id_Aerolinea_FK FOREIGN KEY (id_Aerolinea) REFERENCES AEROLINEA
ON UPDATE CASCADE ON DELETE CASCADE;

-- Llaves Foreneas para la tabla Nacional 
ALTER TABLE NACIONAL ADD CONSTRAINT id_Paquete_N_FK FOREIGN KEY (id_Paquete) REFERENCES PAQUETE
ON UPDATE CASCADE ON DELETE CASCADE;
ALTER TABLE NACIONAL ADD CONSTRAINT id_Conductor_N_FK FOREIGN KEY (id_Conductor) REFERENCES CONDUCTOR
ON UPDATE CASCADE ON DELETE CASCADE;

-- Llaves Foreneas para envío Nacional 
/*ALTER TABLE ENVIO_NACIONAL ADD CONSTRAINT id_Paquete_Nacional_E_FK FOREIGN KEY (id_Paquete_Nacional) REFERENCES NACIONAL
ON UPDATE CASCADE ON DELETE CASCADE;*/

-- Llaves Foraneas para la tabla Conductor
ALTER TABLE CONDUCTOR ADD CONSTRAINT id_Ruta_C_FK FOREIGN KEY (id_Ruta) REFERENCES RUTA;

SELECT * FROM CONDUCTOR_CAMION


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