Databricks
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #14
Which of the following operations can be used to return the number of rows in a DataFrame?
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Working with Spark DataFrames
Question
Which of the following operations can be used to return the number of rows in a DataFrame?
Options
- ADataFrame.numberOfRows()
- BDataFrame.n()
- CDataFrame.sum()
- DDataFrame.count()
- EDataFrame.countDistinct()
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Topics
#Spark DataFrame#DataFrame operations#Count rows#API methods