Databricks
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #128
Which of the following code blocks applies the function assessPerformance() to each row of DataFrame storesDF?
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Working with Apache Spark DataFrames
Question
Which of the following code blocks applies the function assessPerformance() to each row of DataFrame storesDF?
Options
- AstoresDF.collect.foreach(assessPerformance(row))
- BstoresDF.collect().apply(assessPerformance)
- CstoresDF.collect.apply(row => assessPerformance(row))
- DstoresDF.collect.map(assessPerformance(row))
- EstoresDF.collect.foreach(row => assessPerformance(row))
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Topics
#Spark DataFrame Actions#Scala Collection Methods#Lambda Expressions#Driver Program Operations