DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #179
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Question #179: Real Exam Question with Answer & Explanation
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Question
Which of the following code blocks returns a new DataFrame where column managerNameLength is the number of characters in column managerName in DataFrame storesDF? Assume DataFrame storesDF is the only defined language variable.
Options
- AstoresDF.withColumn("managerNameLength", length(col("managerName")))
- BstoresDF.withColumn("managerNameLength", length("managerName"))
- CstoresDF.withColumn("managerNameLength", col("managerName").length())
- DstoresDF.withColumn("managerNameLength", stringLength(col("managerName")))
- EstoresDF.withColumn("managerNameLength", length(managerName))
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