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Base de datos 1: Verdadero o Falso

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Conceptos clave de bases de datos

Created by

VERONICA E. M.L.
VERONICA E. M.L.
Bolivia

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Base de datos 1: Verdadero o Falso
 

Base de datos 1: Verdadero o FalsoOnline version

Conceptos clave de bases de datos

by VERONICA E. M.L.
1

Una clave primaria identifica de forma única cada fila en una tabla.

2

Las transacciones ACID no deben garantizar consistencia.

3

Una vista almacena físicamente los datos de una consulta.

4

Una base de datos relacional organiza datos en tablas con filas y columnas.

5

Las relaciones entre tablas en una BD relacional se definen mediante claves foráneas.

6

Un índice siempre mejora el rendimiento en todas las consultas.

7

En una base de datos NoSQL, todas las consultas deben usar SQL.

8

En SQL, SELECT se usa para consultar datos.

9

La clave foránea debe ser única en la tabla hija.

10

Normalización busca reducir la redundancia de datos.

 
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