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Which of the following 3 DataFrame operations are classified as a wide transformation ? Choose 3 answers:
Given the code block down below, a database test containing nulls, identify the error
Which of the following code blocks efficiently converts DataFrame transactionsDf from 12 into 24 partitions?
Given the code block down below, a database test containing nulls, identify the error1. def my_udf(s):2. If s is not null:3. return len(s)4.5. spark.udf.register("strlen", my_udf)6. spark.sql("select s from test where s is not null and strlen(s) > 1")
Which of the following 3 DataFrame operations are NOT classified as an action? Choose 3 answers:
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