A quick overview of BigQuery functions
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Senior Data Engineer • Contractor / Freelancer • GCP & AWS Certified
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Practical SQL
Part 12 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.
Expressing multiple repeated joins as a correlated subquery
In yesterday’s post, we looked at retrieving information from a table by joining it multiple times—each with different join criteria. This raises a natural question: are there better alternatives to this approach? I initially experimented with a CASE...
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