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Quiz: SQL y Modelado Relacional

Froggy Jumps

Played 37

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Conceptos clave de DDL, integridad y consultas

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Dominican Republic

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Quiz: SQL y Modelado Relacional
 

Froggy Jumps

Quiz: SQL y Modelado RelacionalOnline version

Conceptos clave de DDL, integridad y consultas

by Jose Rafael Alifonso Camacho
1

¿Qué comando crea una base de datos o esquema en SQL?

2

¿Qué tipo de restricción garantiza que una columna no admita valores nulos?

3

¿Qué opción del JOIN devuelve todas las filas de la tabla de la izquierda, con correspondencias cuando existen?

4

¿Qué cláusula se usa para eliminar duplicados en un SELECT?

5

¿Qué estructura define la organización de datos y relaciones entre tablas?

6

¿Qué tipo de restricción se usa para asegurar reglas más complejas en una columna?

7

¿Qué operador se usa para filtrar que una columna esté entre dos valores?

8

¿Qué comando modifica la estructura de una tabla existente?

9

¿Qué clave se usa para mantener la integridad entre tablas relacionadas?

10

¿Qué función te da un conteo de filas en un conjunto de resultados?

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