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Desafío SQL: Consultas Avanzadas

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Verdadero o falso sobre consultas SQL avanzadas

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Desafío SQL: Consultas Avanzadas
 

Desafío SQL: Consultas AvanzadasOnline version

Verdadero o falso sobre consultas SQL avanzadas

by MARIA FERNANDA REYES MANCILLA
1

Las Common Table Expressions dificultan la legibilidad de las consultas.

2

Las funciones de ventana incluyen RANK() y ROW_NUMBER() para clasificar dentro de grupos.

3

Uniones se limitan únicamente a Inner Joins; no existen otros tipos.

4

Las subconsultas pueden usarse en cláusulas WHERE y FROM para filtrar resultados o generar tablas temporales.

5

Las subconsultas no se pueden usar en cláusulas WHERE.

6

Las funciones de ventana no permiten clasificar datos dentro de grupos.

7

Las Common Table Expressions (CTE) permiten construir consultas complejas de forma modular y más legible.

8

ROW_NUMBER() no se puede usar junto con RANK() en la misma consulta.

9

Las expresiones condicionales permiten contar o sumar datos de forma dinámica, como SUM(IF(...)).

10

Los Joins pueden ser Inner, Left, Right y Full Outer Joins para relacionar tablas.

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