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Merge pull request #9 from cromerc/feature_Trigger_4

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Se agrega Trigger de Pregunta 4
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Chris Cromer 2020-06-16 14:59:24 -04:00 committed by GitHub
commit b88ee44c0e
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1 changed files with 38 additions and 1 deletions
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37
trigger.sql
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@ -1,3 +1,5 @@
/* Pregunta 3*/
CREATE OR REPLACE TRIGGER correlative_increment BEFORE INSERT ON ciudad FOR EACH ROW
DECLARE
@ -9,3 +11,38 @@ BEGIN
SELECT MAX(id_ciudad) INTO idCiudad FROM ciudad;
:new.id_ciudad := idCiudad + 1;
END;
/* Pregunta 4 */
CREATE OR REPLACE TRIGGER Validacion_Pre_Competencia BEFORE INSERT ON PARTICIPAR_COMPETENCIA
FOR EACH ROW
DECLARE
CURSOR participar_preco
IS SELECT PPC.id_precompetencia
FROM PARTICIPAR_PRECOMPETENCIA PPC
LEFT JOIN PRECOMPETENCIA PC ON PC.id_precompetencia = PPC.id_precompetencia
WHERE PPC.id_atleta = :NEW.id_atleta AND pc.competencia = :NEW.id_competencia;
id_precompetencia PARTICIPAR_PRECOMPETENCIA.id_precompetencia%TYPE;
BEGIN
OPEN participar_preco;
FETCH participar_preco into id_precompetencia;
IF participar_preco%found THEN
dbms_output.put_line('EL ATLETA HA PARTICIPADO EN PRECOMPETENCIAS ASOCIADAS');
ELSE Raise_Application_Error(-20120, 'NO SE PUEDE INSERTAR, EL ATLETA NO POSEE PRECOMPETENCIAS ASOCIADAS A LA COMPETENCIA');
END IF;
CLOSE participar_preco;
END;
INSERT INTO "PARTICIPAR_COMPETENCIA" (ID_COMPETENCIA, ID_ATLETA, FECHA) VALUES ('1', '21', TO_DATE('2020-07-09 00:00:00', 'YYYY-MM-DD HH24:MI:SS'));
INSERT INTO "PARTICIPAR_PRECOMPETENCIA" (ID_PRECOMPETENCIA, ID_ATLETA, PUNTAJE, FECHA) VALUES ('3', '2', '100', TO_DATE('2020-06-27 00:00:00', 'YYYY-MM-DD HH24:MI:SS'));
INSERT INTO "PARTICIPAR_COMPETENCIA" (ID_COMPETENCIA, ID_ATLETA, FECHA) VALUES ('1', '21', TO_DATE('2020-07-09 00:00:00', 'YYYY-MM-DD HH24:MI:SS'));
/* Pregunta 5 */