Sessionization in SQL: grouping clicks into sessions | SQL interview
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Sessionization in SQL: grouping clicks into sessions | SQL interview
Raw events don't come with sessions. You draw the boundaries. A gap-based sessionization with window functions. Compare each click to the one before it per user, and start a new session whenever the gap crosses your threshold. The idea is simple once you see it: LAG gives you the previous timestamp, a flag marks every "new session" row, and a ...
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Most people try to learn SQL by memorizing syntax… But real analysts learn how to ask better questions about data. In this clip from my Live SQL session, I’m breaking down one of the most important beginner concepts: 👉 Every question must connect to a table, column, and condition. That’s the difference between knowing SQL and actually being able to use it in the real world. If you’re serious about transitioning into data, this is where it starts. #SQL #DataAnalytics #LearnSQL #TechCareers #Data
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