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Data Science is an amazing field of research that is under active development both from the academia and the industry. Science is based upon the collecting of data. Data science is a team sport. Kaggle is the world’s largest data science community with powerful tools and resources to help you achieve your data science goals. Practice Every Step of the Way by Working Through 100+ Puzzles ... you won't find a better source to learn SQL for Data Science elsewhere. After completing these 3 steps, you'll be ready to attack more difficult machine learning problems and common real-world applications of data science. Data science is an inter-disciplinary field that uses scientific methods, processes, algorithms and systems to extract knowledge and insights from many structural and unstructured data. 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