This video will guide you through grouping data using SQL, applying it with aggregate functions, and handling common errors. Learn how to group by single and multiple fields and combine GROUP BY with ORDER BY for optimal data analysis. Whether you're calculating averages or organizing data by certification and language, this tutorial has you covered.
- Understand the GROUP BY clause in SQL
- Use GROUP BY with aggregate functions
- Handle SQL errors related to GROUP BY
- Group data by multiple fields
- Combine GROUP BY with ORDER BY for better results
#sql #datascience #dataengineering #databases #postgresql
00:00 Intro
00:05 Importance of Grouping Data
00:23 GROUP BY Single Fields
00:58 Handling Errors in GROUP BY
01:10 GROUP BY Multiple Fields
01:44 Combining GROUP BY with ORDER BY
02:23 Understanding Order of Execution
02:42 Let's Practice!
