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Qlik Exam QSDA2022 Topic 3 Question 25 Discussion

Actual exam question for Qlik's QSDA2022 exam
Question #: 25
Topic #: 3
[All QSDA2022 Questions]

A data architect needs to upload different data sources. To properly handle null values, the data architect decides to set all of these values to "Missing Value".

Which syntax should the data architect use?

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Suggested Answer: A

This syntax will set all null values to 'Missing Value' in the data sources. The other options are not valid syntax and will not achieve the desired result.


by Phung at May 24, 2024, 12:00 AM

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Francine
10 months ago
Why not just use a giant 'REPLACE(NULL, 'Missing Value')' statement? It's more flexible and you don't have to worry about the syntax. *winks*
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Ryan
10 months ago
Hmm, I'm not sure. Maybe B? The syntax looks cleaner and more straightforward than the other options.
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Glory
9 months ago
Yeah, B looks like the right choice for handling null values.
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Golda
9 months ago
I agree, B seems like the most straightforward option.
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Jody
9 months ago
I think B is the correct syntax. It looks cleaner.
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Gracia
10 months ago
I'm going with C. The 'NullasNull *' syntax is correct, and 'Set NullValue = 'Missing Value'' is the right way to set the null values.
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Graciela
10 months ago
D looks good to me. The 'NullAsValue*' syntax ensures that null values are treated as a specific value, and 'Set NullValue = 'Missing Value'' sets that value to 'Missing Value'.
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Patrick
8 months ago
Yes, D looks good. It sets null values to 'Missing Value'.
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Raina
9 months ago
I think D is the correct syntax.
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Nicolette
9 months ago
Yes, option D is the best choice for setting null values to 'Missing Value'.
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Nicolette
9 months ago
I agree, option D seems to be the correct syntax for handling null values.
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James
9 months ago
I agree, NullAsValue* and Set NullValue = 'Missing Value' make sense.
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Oren
10 months ago
I think D is the correct syntax.
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Allene
10 months ago
I think B is the correct answer. The syntax 'NullasNull *' is used to treat null values as null, and then 'Set NullValues = 'Missing Value'' sets all null values to 'Missing Value'.
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Lashonda
9 months ago
Great, looks like we all understand the syntax now.
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Fabiola
9 months ago
I agree, it's a good practice for data integrity.
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Johnna
9 months ago
Definitely, setting them all to 'Missing Value' ensures consistency.
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Lashonda
10 months ago
Yes, 'NullasNull *' treats null values as null, and then 'Set NullValues = 'Missing Value'' sets all null values to 'Missing Value'.
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Margurite
10 months ago
That makes sense, it's important to handle null values properly.
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Dorthy
10 months ago
Then 'Set NullValues = 'Missing Value'' sets them to 'Missing Value'.
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Lashawnda
10 months ago
I think B is the correct answer.
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Maira
10 months ago
Yes, 'NullasNull *' treats null values as null.
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Sherill
10 months ago
I think B is the correct answer.
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