Not just SQL | Constantin Lungu | Substack

Why you should think twice before UNNESTing arrays or date intervals

A practical reminder that not all simple solutions scale

Jun 9, 2025 • Constantin Lungu

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Short, almost non-technical guide to SQL query tuning as a Data Engineer

Jun 19, 2024 • Constantin Lungu

Breaking Free from Tutorial Hell: Tips for Aspiring Data Professionals

Jun 1, 2024 • Constantin Lungu

Why does your Data Warehouse need to look more like a pharmacy than a retail store?

Apr 15, 2024 • Constantin Lungu

Not just SQL

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