Which of the following code blocks returns all unique values of column storeId in DataFrame...

Databricks Databricks-Certified-Associate-Developer-for-Apache-Spark-3.0 Question Answer

Which of the following code blocks returns all unique values of column storeId in DataFrame transactionsDf?

transactionsDf["storeId"].distinct()

transactionsDf.select("storeId").distinct()

(Correct)

transactionsDf.filter("storeId").distinct()

transactionsDf.select(col("storeId").distinct())

transactionsDf.distinct("storeId")

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