Spark Programming in Python for Beginners with Apache Spark 3 - Creating and Using UDF

The video tutorial explains how to create and use User Defined Functions (UDFs) in Apache Spark. It covers the creation of a UDF to standardize gender data, registration of the UDF for use in both column and SQL expressions, and the differences between these registration methods. The tutorial also demonstrates how to transform data using the 'withColumn' method and how to query the Spark catalog for registered functions.

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