GROUP BY in SQL: Handling Errors and Multiple Fields скачать в хорошем качестве

GROUP BY in SQL: Handling Errors and Multiple Fields

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!