"Coursera course" get data, clean up data 1

What do we expect the data to look like?

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What does the real data look like?

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Where is the data? In a file, in a relational database, in a NoSQL database.

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The objectives of this course

Raw Data---"Processing scripts---" Data analysis----"Data-----" data exchange

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"Coursera course" get data, clean up data 1