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Explain Spark join() operation?
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Answer / Shyam Ji Mishra
The Spark join() operation is a method used to combine two or more RDDs (Resilient Distributed Datasets) based on a common key. It works similar to SQL's JOIN operations, allowing you to perform operations such as inner join, outer join, left outer join, and right outer join. The result is an RDD where each tuple contains the combined data from both RDDs.
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