Using Avro Data Files From Spark SQL 2.3.x or earlier

On this post we will see several examples or usages of accessing Spark Avro file format using Spark 2.3 or earlier. Spark SQL supports loading and saving DataFrames from and to a Avro data files by using spark-avro library. spark-avro originally developed by databricks as a open source library which supports reading and writing data in Avro file format.