DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #64
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Question #64: Real Exam Question with Answer & Explanation
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Question
Which of the following code blocks fails to return a new DataFrame that is the result of an inner join between DataFrame storesDF and DataFrame employeesDF on column storeId and column employeeId?
Options
- AstoresDF.join(employeesDF, Seq(col("storeId"), col("employeeId")))
- BstoresDF.join(employeesDF, Seq("storeId", "employeeId"))
- CstoresDF.join(employeesDF, storesDF("storeId") === employeesDF("storeId") and
- DstoresDF.join(employeesDF, Seq("storeId", "employeeId"), "inner")
- EstoresDF.alias("s").join(employeesDF.alias("e"), col("s.storeId") === col("e.storeId") and
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