HDPCP Practical Exam problem

joshi_neeraj84 — Fri, 16 Sep 2022 10:53:54 GMT

Hi,

I was going through the practical exam for HDPCD in AWS. There is a question in pig as

"Remove all rows in the flightdelays data where the DepTime column equals the string "NA".

The answer provided for this question says:

b = filter a by (chararray) $4 != 'NA' or (chararray) $11 != 'NA';

I do not understand why It checks 2 fields here. Is it correct or am I missing something ? Because of this I find differences in the actual output and my answer.

Please help me to understand if anyone has idea about it.

Re: HDPCP Practical Exam problem

wgonzalez — Mon, 23 Jan 2017 22:08:37 GMT

There is a typo in the solution.

The correct line in the solution should be

b = filter a by (chararray) $4 != 'NA';

Thanks

Re: HDPCP Practical Exam problem

joshi_neeraj84 — Tue, 24 Jan 2017 09:05:00 GMT

Thank you!

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HDPCP Practical Exam problem

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