Comentarios en: SQL contra el Apocalipsis Mutante (Parte 1): Aprende SQL y salva el mundo

Por: Diosvely Perez Arteaga

Diosvely Perez Arteaga — Sun, 13 Jul 2025 23:33:00 +0000

Parte 1

Ejercicio 1

SELECT RefugeID, FoodRations, WaterLiters
FROM RefugeSupplies
WHERE FoodRations < 10 OR WaterLiters < 50
ORDER BY FoodRations ASC;

Ejercicio 2:

SELECT TOP 5 RefugeID, Weapons
FROM RefugeSupplies
ORDER BY Weapons DESC;

Ejercicio 3

SELECT RefugeID, Latitude, Longitude
FROM RefugeSupplies
WHERE Latitude BETWEEN 39 AND 41
AND Longitude BETWEEN -75 AND -73;

Ejercicio 4

SELECT
rs.RefugeID,
ss.Population,
rs.FoodRations,
rs.Weapons
FROM RefugeSupplies rs
JOIN SurvivorStats ss
ON rs.RefugeID = ss.RefugeID;

Ejercicio 5:

SELECT
rs.RefugeID,
ss.Population,
rs.Weapons
FROM RefugeSupplies rs
JOIN SurvivorStats ss
ON rs.RefugeID = ss.RefugeID
WHERE rs.Weapons 50;

Por: Diosvely Perez Arteaga

Diosvely Perez Arteaga — Sun, 13 Jul 2025 23:29:36 +0000

Roberto me encanto este Reto.

Por: Diosvely Perez Arteaga

Diosvely Perez Arteaga — Sun, 13 Jul 2025 23:29:08 +0000

Ejercicio 1:

SELECT RefugeID, FoodRations, WaterLiters
FROM RefugeSupplies
WHERE FoodRations < 10 OR WaterLiters < 50
ORDER BY FoodRations ASC;

Ejercicio 2:

SELECT TOP 5 RefugeID, Weapons
FROM RefugeSupplies
ORDER BY Weapons DESC;

Ejercicio 3:

SELECT RefugeID, Latitude, Longitude
FROM RefugeSupplies
WHERE Latitude BETWEEN 39 AND 41
AND Longitude BETWEEN -75 AND -73;

Ejercicio 4:

SELECT
rs.RefugeID,
ss.Population,
rs.FoodRations,
rs.Weapons
FROM RefugeSupplies rs
JOIN SurvivorStats ss
ON rs.RefugeID = ss.RefugeID;

Ejercicio 5:

SELECT
rs.RefugeID,
ss.Population,
rs.Weapons
FROM RefugeSupplies rs
JOIN SurvivorStats ss
ON rs.RefugeID = ss.RefugeID
WHERE rs.Weapons 50;

Por: Hugo

Hugo — Mon, 07 Jul 2025 21:48:51 +0000

— Ejercicio 1: Localiza los refugios al borde del colapso
Select RefugeID, FoodRations, WaterLiters
from [dbo].[RefugeSupplies]
where FoodRations<10 or WaterLiters= 39 and Latitude =-75 and Longitude<=-73)

–Ejercicio 4: Conoce a los supervivientes que defiendes

SELECT RS.RefugeID, Population, RS.FoodRations, RS.WaterLiters, RS.Weapons
from [dbo].[RefugeSupplies] as RS
inner join SurvivorStats as SS ON RS.RefugeID=SS.RefugeID

–Ejercicio 5: Identifica tragedias inminentes

SELECT RS.RefugeID, Population, RS.FoodRations, RS.WaterLiters, RS.Weapons
from [dbo].[RefugeSupplies] as RS
inner join SurvivorStats as SS ON RS.RefugeID=SS.RefugeID
where RS.Weapons 50

Interesante conversación sobre qué funciona mejor: beetwen o >

Por: Diego Ramírez

Diego Ramírez — Mon, 07 Jul 2025 15:11:20 +0000

En respuesta a Diego Ramírez.

Mejor les comparto por acá mi aporte, saludos: https://pastebin.com/4qf7S9Yr

Por: Diego Ramírez

Diego Ramírez — Mon, 07 Jul 2025 13:59:06 +0000

En respuesta a Diego Ramírez. No sé por qué los pega mal.... saludos.

Por: Diego Ramírez

Diego Ramírez — Mon, 07 Jul 2025 13:58:10 +0000

En respuesta a Diego Ramírez.

— Ejercicio 5: Identifica tragedias inminentes
SELECT R.RefugeID, S.Population, R.FoodRations, R.WaterLiters, R.Weapons
FROM SurvivalDB.dbo.RefugeSupplies AS R
INNER JOIN SurvivalDB.dbo.SurvivorStats AS S ON (S.RefugeID=R.RefugeID)
WHERE R.Weapons 50;