
8-SQL Funciones
Presentation
•
Computers
•
6th - 8th Grade
•
Practice Problem
•
Hard
JOEL Colon
FREE Resource
9 Slides • 5 Questions
1
SELECT TOP 3 * FROM Customers;
Este comando te muestra los primeros 3 records de la tabla Customers.
2
SELECT TOP 50 PERCENT * FROM Customers;
Este comando te muestra la mitad de records de la tabla Customers.
3
SELECT TOP 3 * FROM Customers
WHERE Country='Germany';
Este comando te muestra los primeros 3 records de la tabla Customers que tengan a Germany listado en la columna Country.
4
SELECT MIN(Price)
FROM Products;
Este comando te muestra el dato de menor cantidad en la columna Price.
Observa que solo te da el resultado de la matemática.
5
SELECT MIN(Price) AS SmallestPrice
FROM Products;
Observa que aquí le asignamos un TITULO a la columna en lugar de solo mostrar la fórmula matemática.
6
SELECT MAX(Price) AS LargestPrice
FROM Products;
También podemos usar la función MAX para encontrar el dato de mayor cantidad
7
SELECT COUNT(ProductID)
FROM Products;
La función COUNT te calcula la cantidad de datos en una columna.
8
SELECT AVG(Price) AS PROMEDIO
FROM Products;
La función AVG te calcula el promedio de datos en una columna.
9
SELECT SUM(Quantity) AS SUMATORIA
FROM OrderDetails;
La función SUM te SUMA los datos en una columna.
10
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11
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12
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13
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14
Fill in the Blanks
SELECT TOP 3 * FROM Customers;
Este comando te muestra los primeros 3 records de la tabla Customers.
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