
PRÁCTICA BD1
Authored by Camilo Hernandez
Computers
University
Used 2+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿En qué caso es útil manejar una base de datos de tipo noSQL?
Cuando se tienen relaciones de muchos a muchos entre tablas
Cuando los datos no tienen una estructura fija o es dinámica
Cuando no se sabe que sistema de gestión de bases de datos usar
No importa, es equivalente a una base de datos sql tradicional
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál de los siguientes NO es un tipo de JOIN?
Inner join
Full join
Middle join
Right join
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
El _____ es aquel tipo de JOIN que únicamente muestra los valores que cruzan entre ambas tablas.
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Las funciones de _________ son aquellas que permiten hacer operaciones como sumas y máximos con las distintas columnas de las tablas.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Complete el siguiente query:
SELECT departamento, cargo, _____ (*) AS num_empleados
FROM empleados
_____ __ departamento, cargo;
Count ; group by
Sum ; having
Avg ; group by
Count ; where
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál de los siguientes no es un motor de bases de datos?
Xampp
My sql
Oracle
Postgresql
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
¿Cuál de las siguientes operaciones no hace parte del "C.R.U.D"?
Creación
Respaldo
Actualización
Borrado
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