
base de datos relaciomales
Authored by Emiliano Rotta
Mathematics
1st Grade
Used 1+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué es una base de datos?
Un sistema operativo.
Un conjunto de información organizada.
Un tipo de software de red.
Un algoritmo de búsqueda.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es un ejemplo de un tipo de dato SQL?
FOR
INTEGER
DELETE
RELATION
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué tipo de clave asegura que cada fila en una tabla sea única?
Clave secundaria.
Clave foránea.
Clave primaria.
Clave natural.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué sentencia SQL se utiliza para eliminar una tabla?
DELETE
ALTER
DROP
TRUNCATE
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes sentencias se usa para actualizar datos en una tabla?
DELETE
UPDATE
INSERT
SELECT
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es una restricción de validación en SQL?
JOIN
FROM
ALL
CHECK
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué tipo de JOIN devuelve solo las filas cuando hay una coincidencia en ambas tablas?
INNER JOIN.
LEFT JOIN.
RIGHT JOIN.
FULL JOIN
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