DataFrame abstraction - Kursused

Spark DataFrames • Spark DataFrameis a collectionof data organized into labelled columns –Stored in Resilient Distributed Datasets (RDD) • Equivalent to a table in a relational DB or DataFramein R or Python • Shares built-in & UDF functionswith HiveQL and Spark SQL • DdifferentAPI from Spark RDD –DataFrame API is more column focused ................
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