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Continuation: Creating a Database + Table (Aggregate Functions Explained)
Автор: DATA NEST WITH ANGIE
Загружено: 2025-12-05
Просмотров: 2
Описание:
In this video, i continue from where we stopped after creating our database and student_scores table.
Today, I break down SQL Aggregate functions in the simplest way using real examples from the table we created.
What you'll learn:
How to use:
1. COUNT()- count the number of rows
2. AVG() - calculate average scores
3. MIN() - find the lowest score
4. SUM() - add total scores
How to use them with:
1. WHERE clause
2. GROUP BY
3. ORDER BY
4. HAVING
Why this is important:
Aggregate functions are essential for data analysis, reporting, and generating insights from your database. if you're learning SQL, for Data analytics, this is a must- know skill!
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