
Base de Datos para Aplicaciones U1
Authored by Ricardo Israel Roque Covarrubias
Computers
1st Grade
Used 3+ times

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22 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿Qué consulta regresa todos los departamentos en la tabla SALARIES?
SALARIES ( Professor_Name (TEXT), Department (TEXT), Salary (INT) )
SELECT ALL Department FROM Salary;
SELECT DISTINCT Department FROM SALARIES;
SELECT DISTINCT Professor_Name FROM *;
SELECT FROM Department
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Escriba una query que regrese el nombre y salario de el profesor con el salario más alto
SALARIES ( Professor_Name (TEXT), Department (TEXT), Salary (INT) )
SELECT Professor_Name, MAX(Salary) FROM Department;
SELECT Professor_Name, MAX(Salary) FROM SALARIES;
SELECT MIN(Salary),Professor_Name, FROM Department;
Ninguna de las anteriores
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Escriba un query que regrese todos los nombres de profesores que inicien con la letra "C"
SALARIES ( Professor_Name (TEXT), Department (TEXT), Salary (INT) )
SELECT Professor_Name FROM SALARIES WHERE Professor_Name LIKE 'C%';
SELECT Professor_Name FROM SALARIES FROM Professor_Name LIKE 'C';
SELECT Professor_Name FROM SALARIES WHERE Professor_Name LIKE Salary;
SELECT Professor_Name WHERE SALARIES FROM Professor_Name LIKE 'C%';
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Escriba una query que regrese el departamento con el salario promedio más alto junto con ese salario promedio.
SALARIES ( Professor_Name (TEXT), Department (TEXT), Salary (INT) )
SELECT Department, AVG(Salary) FROM SALARIES GROUP BY DEPARTMENT ORDER BY AVG(Salary);
SELECT Department, AVG(Salary) FROM SALARIES ORDER BY AVG(Salary) DESC LIMIT 1;
SELECT Department, AVG(Salary) FROM SALARIES GROUP BY AVG(Salary) DESC LIMIT 1;
SELECT Department, AVG(Salary) FROM SALARIES GROUP BY DEPARTMENT ORDER BY AVG(Salary) DESC LIMIT 1;
5.
FILL IN THE BLANK QUESTION
30 sec • 1 pt
El operador IS _____ se utiliza para comprobar si un campo tiene valores vacíos.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Una sentencia SELECT sin la cláusula WHERE devuelve
Todos los registros existentes en la tabla que no estén relacionados con otra tabla
Todos los registros existentes en la tabla
No se puede ejecutar una sentencia SELECT sin la cláusula WHERE
Las anteriores respuestas no son correctas
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
¿En cuál de las siguientes sentencias del lenguaje SQL se emplea la cláusula SET?
delete
select
drop
update
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