Câu 103: Databricks Certified Associate Developer for Apache Spark

Which of the following code blocks returns a new DataFrame where column sqft from DataFrame storesDF has had its missing values replaced with the value 30,000?A sample of DataFrame storesDF is below:

1. A. storesDF.na.fill(30000, Seq("sqft"))
2. B. storesDF.nafill(30000, col("sqft"))
3. C. storesDF.na.fill(30000, col("sqft"))
4. D. storesDF.fillna(30000, col("sqft"))
5. E. storesDF.na.fill(30000, "sqft") — đáp án hiện tại