
Quiz sobre Consultas SQL
Quiz
•
Computers
•
12th Grade
•
Practice Problem
•
Easy
Gabriel Giusti
Used 2+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la función del lenguaje DML en SQL?
Definir la estructura de la base de datos
Crear índices
Realizar copias de seguridad
Manipular los datos
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué instrucción se utiliza para obtener datos de una base de datos?
INSERT
UPDATE
DELETE
SELECT
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué operador se utiliza para comprobar si un valor está dentro de un rango?
IN
BETWEEN
LIKE
IS NULL
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la sintaxis correcta para obtener todos los datos de una tabla llamada 'alumno'?
SELECT ALL FROM alumno;
SELECT * FROM alumno;
SELECT alumno;
SELECT ALL alumno;
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué cláusula se utiliza para ordenar los resultados de una consulta?
LIMIT
ORDER BY
GROUP BY
WHERE
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué función se utiliza para concatenar cadenas en MySQL?
LINK
MERGE
CONCAT
JOIN
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué operador se utiliza para comprobar si un valor es NULL?
IS NOT
NOT NULL
NULL
IS NULL
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