DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK · Question #136
DATABRICKS-CERTIFIED-ASSOCIATE-DEVELOPER-FOR-APACHE-SPARK Question #136: Real Exam Question with Answer & Explanation
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Question
The code block shown below contains an error. The code block intended to return a DataFrame containing a column dayOfYear, an integer representation of the day of the year from column openDate from DataFrame storesDF. Identify the error. Note that column openDate is of type integer and represents a date in the UNIX epoch format - the number of seconds since midnight on January 1st, 1970. A sample of storesDF is displayed below: Code block: storesDF.withColumn("dayOfYear", dayofyear(col("openDate")))
Options
- AThe dayofyear() operation cannot extract the day of year from a column of type integer - column
- BThe dayofyear() operation takes a quoted column name rather than a Column object as its first
- CThe dayofyear() operation cannot extract the day of year from a column of type integer - column
- DThe dayofyear() operation is not applicable in a withColumn() call - the newColumn() operation
- EThere is no dayofyear() operation - the day of year number must be extracted using substring
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