Sometimes, you have to use subqueries!
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Senior Data Engineer • Contractor / Freelancer • GCP & AWS Certified
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Practical SQL
Part 19 of 50
Short, practical posts on SQL and BigQuery — from core language features to advanced query patterns. A reference for data practitioners at every level.
Not all NULLS are the same
So NULLs are definitely beasts of their own and as Data Engineers we come to learn to take them into account. That is because not knowing their quirks can lead to unexpected results or errors. Let's look at how not all NULLS are the same in BigQuery ...
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