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Explain leftOuterJoin() and rightOuterJoin() operation in Apache Spark?
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Answer / Varunt Yagi
In Apache Spark, `leftOuterJoin()` returns a dataset with all the records from the left RDD (first argument) and null for missing values on the right RDD (second argument). On the other hand, `rightOuterJoin()` returns a dataset with all the records from the right RDD and null for missing values on the left RDD.
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