Solution: Do Math with Your Data
Explore how to perform mathematical calculations on data using SQL aggregate functions like COUNT and AVG. Understand how to summarize information by counting rows and finding averages, and learn to label results clearly with aliases for better readability.
We'll cover the following...
We'll cover the following...
Query
SELECT COUNT(*) AS total_pets, AVG(age) AS average_ageFROM pets;
Explanation
This SQL query calculates two things from the pets ...