aviles manuel hurtado katherine

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CREATE TABLE camioneros

(

nombre CHAR(18) NULL ,

cedula CHAR(18) NOT NULL ,

telefono CHAR(18) NULL ,

direccion CHAR(18) NULL ,

salario CHAR(18) NULL ,

destinatario CHAR(18) NULL ,

matricula CHAR(18) NULL

);

CREATE UNIQUE INDEX XPKcamioneros ON camioneros

(cedula ASC);

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ALTER TABLE camioneros

ADD CONSTRAINT XPKcamioneros PRIMARY KEY (cedula);

CREATE TABLE camiones

(

matricula CHAR(18) NOT NULL ,

modelo CHAR(18) NULL ,

tipo CHAR(18) NULL ,

potencia CHAR(18) NULL

);

CREATE UNIQUE INDEX XPKcamiones ON camiones

(matricula ASC);

ALTER TABLE camiones

ADD CONSTRAINT XPKcamiones PRIMARY KEY (matricula);

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CREATE TABLE paquete

(

codigo CHAR(18) NOT NULL ,

provincia CHAR(18) NULL ,

nombre CHAR(18) NULL ,

cedula CHAR(18) NULL

);

CREATE UNIQUE INDEX XPKpaquete ON paquete

(codigo ASC);

ALTER TABLE paquete

ADD CONSTRAINT XPKpaquete PRIMARY KEY (codigo);

CREATE TABLE provincias

(

codigo CHAR(18) NOT NULL ,

nombre CHAR(18) NULL

);

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CREATE UNIQUE INDEX XPKprovincias ON provincias

(codigo ASC);

ALTER TABLE provincias

ADD CONSTRAINT XPKprovincias PRIMARY KEY (codigo);

ALTER TABLE camioneros

ADD (CONSTRAINT R_4 FOREIGN KEY (matricula) REFERENCES camiones (matricula) ON DELETE SET NULL);

ALTER TABLE paquete

ADD (CONSTRAINT R_3 FOREIGN KEY (codigo) REFERENCES provincias (codigo));

ALTER TABLE paquete

ADD (CONSTRAINT R_5 FOREIGN KEY (cedula) REFERENCES camioneros (cedula) ON DELETE SET NULL);

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CREATE TRIGGER tI_camioneros BEFORE INSERT ON camioneros for each row

-- ERwin Builtin Trigger

-- INSERT trigger on camioneros

DECLARE NUMROWS INTEGER;

BEGIN

/* ERwin Builtin Trigger */

/* camiones camioneros on child insert set null */

/* ERWIN_RELATION:CHECKSUM="0000ef67", PARENT_OWNER="", PARENT_TABLE="camiones"

CHILD_OWNER="", CHILD_TABLE="camioneros"

P2C_VERB_PHRASE="", C2P_VERB_PHRASE="",

FK_CONSTRAINT="R_4", FK_COLUMNS="matricula" */

UPDATE camioneros

SET

/* %SetFK(camioneros,NULL) */

camioneros.matricula = NULL

WHERE

NOT EXISTS (

SELECT * FROM camiones

WHERE

/* %JoinFKPK(:%New,camiones," = "," AND") */

:new.matricula = camiones.matricula

)

/* %JoinPKPK(camioneros,:%New," = "," AND") */

and camioneros.cedula = :new.cedula;

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END;

/

CREATE TRIGGER tD_camioneros AFTER DELETE ON camioneros for each row


-- DELETE trigger on camioneros


BEGIN


/* camioneros paquete on parent delete set null */

/* ERWIN_RELATION:CHECKSUM="0000abe1", PARENT_OWNER="", PARENT_TABLE="camioneros"

CHILD_OWNER="", CHILD_TABLE="paquete"


FK_CONSTRAINT="R_5", FK_COLUMNS="cedula" */

UPDATE paquete

SET

/* %SetFK(paquete,NULL) */

paquete.cedula = NULL

WHERE

/* %JoinFKPK(paquete,:%Old," = "," AND") */

paquete.cedula = :old.cedula;

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END;

/

CREATE TRIGGER tU_camioneros AFTER UPDATE ON camioneros for each row


-- UPDATE trigger on camioneros


BEGIN

/* camioneros paquete on parent update set null */

/* ERWIN_RELATION:CHECKSUM="0001e0e9", PARENT_OWNER="", PARENT_TABLE="camioneros"




IF

/* %JoinPKPK(:%Old,:%New," <> "," OR ") */

:old.cedula <> :new.cedula

THEN

UPDATE paquete

SET



WHERE

/* %JoinFKPK(paquete,:%Old," = ",",") */

paquete.cedula = :old.cedula;

END IF;

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/* camiones camioneros on child update no action */

/* ERWIN_RELATION:CHECKSUM="00000000", PARENT_OWNER="", PARENT_TABLE="camiones"




SELECT count(*) INTO NUMROWS

FROM camiones

WHERE

/* %JoinFKPK(:%New,camiones," = "," AND") */

:new.matricula = camiones.matricula;

IF (

/* %NotnullFK(:%New," IS NOT NULL AND") */

:new.matricula IS NOT NULL AND

NUMROWS = 0

)

THEN

raise_application_error(

-20007,

'Cannot update camioneros because camiones does not exist.'

);

END IF;


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END;

/

CREATE TRIGGER tD_camiones AFTER DELETE ON camiones for each row


-- DELETE trigger on camiones


BEGIN


/* camiones camioneros on parent delete set null */

/* ERWIN_RELATION:CHECKSUM="0000b734", PARENT_OWNER="", PARENT_TABLE="camiones"




UPDATE camioneros

SET



WHERE

/* %JoinFKPK(camioneros,:%Old," = "," AND") */

camioneros.matricula = :old.matricula;


END;

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/

CREATE TRIGGER tU_camiones AFTER UPDATE ON camiones for each row


-- UPDATE trigger on camiones


BEGIN

/* camiones camioneros on parent update set null */

/* ERWIN_RELATION:CHECKSUM="0000d8e3", PARENT_OWNER="", PARENT_TABLE="camiones"




IF


:old.matricula <> :new.matricula

THEN

UPDATE camioneros

SET



WHERE

/* %JoinFKPK(camioneros,:%Old," = ",",") */

camioneros.matricula = :old.matricula;

END IF;

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END;

/

CREATE TRIGGER tI_paquete BEFORE INSERT ON paquete for each row


-- INSERT trigger on paquete


BEGIN


/* provincias paquete on child insert restrict */

/* ERWIN_RELATION:CHECKSUM="0001e783", PARENT_OWNER="", PARENT_TABLE="provincias"



FK_CONSTRAINT="R_3", FK_COLUMNS="codigo" */


FROM provincias

WHERE

/* %JoinFKPK(:%New,provincias," = "," AND") */

:new.codigo = provincias.codigo;

IF (


NUMROWS = 0

)

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THEN


-20002,

'Cannot insert paquete because provincias does not exist.'

);

END IF;


/* camioneros paquete on child insert set null */

/* ERWIN_RELATION:CHECKSUM="00000000", PARENT_OWNER="", PARENT_TABLE="camioneros"




UPDATE paquete

SET



WHERE

NOT EXISTS (

SELECT * FROM camioneros

WHERE

/* %JoinFKPK(:%New,camioneros," = "," AND") */

:new.cedula = camioneros.cedula

)

/* %JoinPKPK(paquete,:%New," = "," AND") */

and paquete.codigo = :new.codigo;

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END;

/

CREATE TRIGGER tU_paquete AFTER UPDATE ON paquete for each row


-- UPDATE trigger on paquete


BEGIN


/* provincias paquete on child update restrict */

/* ERWIN_RELATION:CHECKSUM="0002069f", PARENT_OWNER="", PARENT_TABLE="provincias"





FROM provincias

WHERE

/* %JoinFKPK(:%New,provincias," = "," AND") */

:new.codigo = provincias.codigo;

IF (


NUMROWS = 0

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)

THEN


-20007,

'Cannot update paquete because provincias does not exist.'

);

END IF;


/* camioneros paquete on child update no action */

/* ERWIN_RELATION:CHECKSUM="00000000", PARENT_OWNER="", PARENT_TABLE="camioneros"





FROM camioneros

WHERE

/* %JoinFKPK(:%New,camioneros," = "," AND") */

:new.cedula = camioneros.cedula;

IF (


:new.cedula IS NOT NULL AND

NUMROWS = 0

)

THEN


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-20007,

'Cannot update paquete because camioneros does not exist.'

);

END IF;


END;

/

CREATE TRIGGER tD_provincias AFTER DELETE ON provincias for each row


-- DELETE trigger on provincias


BEGIN


/* provincias paquete on parent delete restrict */

/* ERWIN_RELATION:CHECKSUM="0000d337", PARENT_OWNER="", PARENT_TABLE="provincias"





FROM paquete

WHERE


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paquete.codigo = :old.codigo;

IF (NUMROWS > 0)

THEN


-20001,

'Cannot delete provincias because paquete exists.'

);

END IF;


END;

/

CREATE TRIGGER tU_provincias AFTER UPDATE ON provincias for each row


-- UPDATE trigger on provincias


BEGIN


/* provincias paquete on parent update restrict */

/* ERWIN_RELATION:CHECKSUM="0000fe23", PARENT_OWNER="", PARENT_TABLE="provincias"




IF

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:old.codigo <> :new.codigo

THEN


FROM paquete

WHERE


paquete.codigo = :old.codigo;

IF (NUMROWS > 0)

THEN


-20005,

'Cannot update provincias because paquete exists.'

);

END IF;

END IF;


END;

/

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