Which of the following code blocks returns all the rows from DataFrame storesDF?

Question

Options

• AstoresDF.head()
• BstoresDF.collect()
• CstoresDF.count()
• DstoresDF.take()
• EstoresDF.show()

• B
  91% (31)
• D
  6% (2)
• E
  3% (1)

Explanation

DataFrame.collect() is the PySpark action that retrieves all rows from the distributed DataFrame and returns them to the driver as a Python list of Row objects. The other options do not return all rows: head() (A) returns only the first row (or first n rows); count() (C) returns an integer count of rows, not the rows themselves; take(n) (D) requires an integer argument and returns only the first n rows; and show() (E) prints a formatted table to the console and returns None - it does not return the row data.

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