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Databricks Certified Data Engineer Professional Exam - Topic 2 Question 54 Discussion

Given the following error traceback (from display(df.select(3*"heartrate"))) which shows AnalysisException: cannot resolve 'heartrateheartrateheartrate', which statement describes the error being raised?
C) There is no column in the table named heartrateheartrateheartrate.
A) There is a type error because a DataFrame object cannot be multiplied.
B) There is a syntax error because the heartrate column is not correctly identified as a column.
D) There is a type error because a column object cannot be multiplied.

Databricks Certified Data Engineer Professional Exam - Topic 2 Question 54 Discussion

Actual exam question for Databricks's Databricks Certified Data Engineer Professional exam
Question #: 54
Topic #: 2
[All Databricks Certified Data Engineer Professional Questions]

Given the following error traceback (from display(df.select(3*"heartrate"))) which shows AnalysisException: cannot resolve 'heartrateheartrateheartrate', which statement describes the error being raised?

Show Suggested Answer Hide Answer
Suggested Answer: C

Exact extract: ''select() expects column names or Column expressions.''


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by Susana at Aug 18, 2026, 11:35 AM

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Krystal
5 days ago
D doesn't apply here, it's all about that column name issue.
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Alberta
10 days ago
A is totally off, DataFrames can handle multiplications just fine.
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Stefany
15 days ago
Wait, how did it end up as 'heartrateheartrateheartrate'? That's weird!
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Fletcher
20 days ago
I think B makes sense too, but C is more accurate.
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Dorothy
25 days ago
C is definitely the right answer. That column name is just wrong.
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Lakeesha
1 month ago
I feel like this is definitely a type error, but I can't recall if it's specifically about the column object or the DataFrame itself.
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Willow
1 month ago
I remember something about DataFrames not allowing multiplication directly, but I'm not confident if that's the case here.
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Francine
1 month ago
I'm not entirely sure, but could it be that there's no column named 'heartrateheartrateheartrate'? That seems plausible.
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Denise
2 months ago
I think this might be a syntax error since the column name isn't recognized properly. It reminds me of a similar question we did in practice.
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