Examen de SQL - Comandos DML
Quiz
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Computers
•
Professional Development
•
Practice Problem
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Medium
Standards-aligned
Ing. José Luis Pimentel Zegarra
Used 4+ times
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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuál es el comando para seleccionar todos los cursos enseñados por el profesor con id_profesor = 1?
SELECT * FROM Cursos WHERE id_profesor = 1;
SELECT * FROM Profesores WHERE id_profesor = 1;
SELECT * FROM Cursos WHERE id_curso = 1;
SELECT * FROM Profesores WHERE id_curso = 1;
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2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuál es el comando para insertar un nuevo curso en la tabla Cursos?
INSERT INTO Cursos VALUES (1, 'Matemáticas', 1);
INSERT INTO Profesores VALUES (1, 'Matemáticas', 1);
UPDATE Cursos SET nombre_curso = 'Matemáticas' WHERE id_curso = 1;
DELETE FROM Cursos WHERE id_curso = 1;
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3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuál es el comando para actualizar el nombre del curso con id_curso = 1 a 'Física'?
UPDATE Cursos SET nombre_curso = 'Física' WHERE id_curso = 1;
UPDATE Profesores SET nombre_curso = 'Física' WHERE id_curso = 1;
INSERT INTO Cursos VALUES (1, 'Física', 1);
DELETE FROM Cursos WHERE id_curso = 1;
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4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuál es el comando para eliminar el curso con id_curso = 1 de la tabla Cursos?
DELETE FROM Cursos WHERE id_curso = 1;
DELETE FROM Profesores WHERE id_curso = 1;
UPDATE Cursos SET nombre_curso = NULL WHERE id_curso = 1;
INSERT INTO Cursos VALUES (1, NULL, 1);
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5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuál es el comando para seleccionar todos los profesores que enseñan el curso con id_curso = 1?
SELECT * FROM Profesores WHERE id_profesor = (SELECT id_profesor FROM Cursos WHERE id_curso = 1);
SELECT * FROM Cursos WHERE id_curso = 1;
SELECT * FROM Profesores WHERE id_curso = 1;
SELECT * FROM Cursos WHERE id_profesor = 1;
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Tipo1
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuál es el comando para seleccionar el nombre del curso con id_curso = 1?
SELECT nombre_curso FROM Cursos WHERE id_curso = 1;
SELECT nombre_curso FROM Profesores WHERE id_curso = 1;
SELECT * FROM Cursos WHERE id_curso = 1;
SELECT * FROM Profesores WHERE id_curso = 1;
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Tipo1
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
¿Cuál es el comando para seleccionar todos los cursos que no tienen un profesor asignado?
SELECT * FROM Cursos WHERE id_profesor IS NULL;
SELECT * FROM Profesores WHERE id_profesor IS NULL;
SELECT * FROM Cursos WHERE id_curso IS NULL;
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