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 questions and answers, questions pdf, question bank, questions and answers pdf, mcq on pdf, questions and solutions, mcq Test , Interview questions, Questions for Interview, MCQ (Multiple Choice Questions),Core Questions, Core Hadoop MCQ,core interview questions for experienced

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.