Part 9: Data Manipulation in Data Merging and Joins
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Last Updated on March 11, 2026 by Editorial Team Author(s): Raj kumar Originally published on Towards AI. Every analysis that combines data from multiple sources faces the same fundamental question: how should these datasets align? Which records match? What happens when they don’t? These aren’t just technical decisions. They shape what your analysis says and what it hides. Data merging is where careful analysis can quietly become corrupted analysis. Not through malicious intent, but through defa
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