
Prueba práctica de MySQL
Authored by donabel guzman
Computers
University
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué comando se utiliza para seleccionar datos de una tabla?
SELECT
RETRIEVE
GET
FETCH
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Escribe una consulta para obtener todos los registros de la tabla 'clientes'.
SELECT ALL FROM clientes;
SELECT * FROM clientes;
GET * FROM clientes;
FETCH * FROM clientes;
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cómo se ordenan los resultados de una consulta en MySQL?
Se ordenan usando la cláusula SELECT.
Se ordenan usando la cláusula GROUP BY.
Se ordenan automáticamente por defecto.
Se ordenan usando la cláusula ORDER BY.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué función se utiliza para contar el número de filas en una consulta?
MAX()
AVG()
SUM()
COUNT()
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Escribe una consulta que muestre el promedio de precios de la tabla 'productos'.
SELECT SUM(precio) FROM productos;
SELECT AVG(precio) FROM productos;
SELECT COUNT(precio) FROM productos;
SELECT MAX(precio) FROM productos;
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué función se utiliza para obtener el valor máximo de una columna?
AVG()
MAX()
COUNT()
SUM()
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Escribe una consulta que muestre la suma total de ventas de la tabla 'ventas'.
SELECT monto FROM ventas WHERE monto > 100;
SELECT SUM(monto) AS total_ventas FROM ventas;
SELECT COUNT(monto) FROM ventas;
SELECT AVG(monto) AS promedio_ventas FROM ventas;
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