
Consultas SQL básicas
Authored by ALEJANDRO MARTÍNEZ GONZALEZ
Computers
11th Grade
Used 3+ times

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15 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál es la instrucción básica para obtener información de una base de datos en SQL?
INSERT INTO
SELECT FROM WHERE
SELECT INTO TABLE
CREATE DATABASE
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué cláusula especifica las tablas involucradas en una consulta?
SELECT
WHERE
FROM
HAVING
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué operador se utiliza para comparar si dos valores son diferentes, según el estándar SQL92?
!=
≠
==
<>
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué operador se utiliza para comparar si dos valores son iguales, según el estándar SQL92?
:
===
==
=
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué consulta mostraría todos los datos de la tabla CURSO?
SELECT ALL FROM CURSO;
SELECT * CURSO;
SELECT * FROM CURSO;
SELECT CURSO FROM 1;
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Qué cláusula se utiliza para eliminar filas duplicadas en el resultado de una consulta?
FILTER
UNDUPLICATE
UNIQUE
DISTINCT
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cómo se puede mostrar el nombre y apellido de quienes que viven en Mercedes de la tabla Persona?
Persona(CI, Nombre, Apellido, Ciudad, edad)
SELECT Nombre, Apellido FROM PERSONA WHERE Ciudad="Mercedes";
SELECT * FROM PERSONA WHERE Ciudad="Mercedes";
SELECT Nombre, Apellido FROM PERSONA WHERE Ciudad is "Mercedes";
SELECT Nombre, Apellido FROM PERSONA WHERE Ciudad=="Mercedes"
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