Скачать или смотреть 37. Aggregation Functions on NULL Values in BigQuery SQL

In this video, we explore how aggregation functions behave when working with NULL values in BigQuery SQL. You'll learn how to handle NULLs effectively while using functions like SUM, AVG, COUNT, and more, ensuring that your queries return accurate results even in the presence of missing data.

🔑 What You'll Learn:
✔️ How aggregation functions like SUM, AVG, and COUNT treat NULL values in BigQuery
✔️ The impact of NULL values on aggregations and how to handle them
✔️ How to use IFNULL, COALESCE, and other techniques to substitute or ignore NULL values in aggregation queries
✔️ Practical examples to manage NULL handling during aggregation operations
✔️ Best practices for maintaining accurate aggregations in your BigQuery SQL queries

This tutorial is essential for anyone who needs to work with data containing NULL values, particularly when performing aggregation tasks in BigQuery SQL.

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