
Quiz sobre el Lenguaje SQL
Authored by Oscar Barnett
Information Technology (IT)
University
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es el lenguaje estándar de definición, manipulación y control de bases de datos relacionales?
MySQL
T-SQL
SQL
PL/SQL
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué sentencia se utiliza para crear una tabla en SQL?
CREATE TABLE
ADD TABLE
INSERT TABLE
DEFINE TABLE
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál de las siguientes es una función de agregación en SQL?
UPDATE
SELECT
DELETE
COUNT
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué tipo de dato se utiliza para almacenar fechas en SQL?
INTEGER
DATE
FLOAT
CHAR
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué sentencia se utiliza para borrar filas de una tabla en SQL?
REMOVE
DELETE
DROP
CLEAR
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Cuál es la función de la cláusula SELECT en SQL?
Seleccionar columnas de una tabla
Crear una nueva tabla
Eliminar registros de una tabla
Actualizar datos en una tabla
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué predicado se utiliza para comprobar si un valor es nulo en SQL?
IS NULL
EXISTS
BETWEEN
IS NOT NULL
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