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Explain join() operation in Apache Spark?

Question Posted / neha goyal


Explain join() operation in Apache Spark?..

Answer / Kumar Pratap

The join() operation in Apache Spark is used to combine rows from two or more DataFrames based on a common column between them (the join key). There are several types of joins such as inner join, left outer join, right outer join, and full outer join. Joins can help perform complex data analysis by combining related data.

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