Developer shares lessons learned exploring data modeling and analyst techniques

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A developer writing on DEV Community has documented their experience learning data analysis, focusing on data modeling and preparation techniques. They describe how understanding reusable data, query-based modeling, and tools like Power Query transformed their approach to working with datasets. Key practical skills covered include removing duplicates, standardizing formats, merging columns, and building aggregate datasets. The author reflects that data cleaning and modeling form the essential foundation of reliable analysis, rather than being secondary tasks. Their main takeaway is that beginners should prioritize these fundamentals, as they are the core skills that define effective data analysts.

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