How to convert rdd object to dataframe in spark

Question

How can I convert an RDD to a dataframe? I converted a data frame to rdd using .rdd. After processing it I want it back in data frame. How to convert it back to rdd Select the correct answer from above options

Answer 1

There are multiple ways to create a DataFrame given rdd, you can take a look here. I’ll demonstrate the simple one. It creates dataframe from rdd containing rows using given schema. def createDataFrame(rowRDD: RDD[Row], schema: StructType): DataFrame If you prefer doing it with DF Helper Function, take a look here.