Question

delimiter //
CREATE TRIGGER agregarMateriaCurso AFTER INSERT ON MateriasDoctorado
   FOR EACH ROW
BEGIN
   IF (SELECT troncal FROM Materias WHERE codigo=NEW.codigoMateria)=1
        THEN
            UPDATE CursoDoctorado SET cantidadMateriasTroncales=cantidadMateriasTroncales+1 WHERE codigo=NEW.codigoDoctorado;
   ELSE
         UPDATE CursoDoctorado SET cantidadMateriasEspecificas=cantidadMateriasEspecificas+1 WHERE codigo=NEW.codigoDoctorado;
        END IF;
END;//
delimiter ;

public class Consulta {

    public static String[] triggers = {
         "delimiter // CREATE TRIGGER agregarMateriaCurso AFTER INSERT ON MateriasDoctorado    FOR EACH ROW  BEGIN  IF (SELECT troncal FROM Materias WHERE codigo=NEW.codigoMateria)=1         THEN            UPDATE CursoDoctorado SET cantidadMateriasTroncales=cantidadMateriasTroncales+1 WHERE codigo=NEW.codigoDoctorado;   ELSE         UPDATE CursoDoctorado SET cantidadMateriasEspecificas=cantidadMateriasEspecificas+1 WHERE codigo=NEW.codigoDoctorado;        END IF; END;// delimiter ;", "delimiter // CREATE TRIGGER eliminarMateriaCurso AFTER DELETE ON MateriasDoctorado   FOR EACH ROW BEGIN   IF (SELECT troncal FROM Materias WHERE codigo=OLD.codigoMateria)=1        THEN            UPDATE CursoDoctorado SET cantidadMateriasTroncales=cantidadMateriasTroncales-1 WHERE codigo=OLD.codigoDoctorado;    ELSE            UPDATE CursoDoctorado SET cantidadMateriasEspecificas=cantidadMateriasEspecificas-1 WHERE codigo=OLD.codigoDoctorado;        END IF; END;// delimiter ; "
    };
}


 for(String sentencia:Consulta.triggers){
                System.out.println(mysqli.update(sentencia));
            }

You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use
near ‘delimiter // CREATE TRIGGER agregarMateriaCurso AFTER INSERT ON
MateriasDoctorad’ at line 1

Answer 1

The first problem was the missing word begin, and the second problem was the trigger insertion from java and was solved removing the “delimiter //”.