Discuss Databricks Databricks Certified Data Analyst Associate Exam Topic 4 Question 20

A data analyst runs the following command:

SELECT age, country

FROM my_table

WHERE age >= 75 AND country = 'canada';

Which of the following tables represents the output of the above command?

AOption A

BOption B

COption C

DOption D

EOption E
The SQL query provided is designed to filter out records from ''my_table'' where the age is 75 or above and the country is Canada. Since I can't view the content of the links provided directly, I need to rely on the image attached to this question for context. Based on that, Option E (the image attached) represents a table with columns ''age'' and ''country'', showing records where age is 75 or above and country is Canada.Reference: The answer can be inferred from understanding SQL queries and their outputs as per Databricks documentation:Databricks SQL

Suggested Answer: A

Option A uses theSELECT DISTINCTstatement to remove duplicate rows from thetable_bronzeand create a new tabletable_silverwith the deduplicated data.This is the correct way to deduplicate data using Spark SQL12. Option B simply inserts all the rows fromtable_bronzeintotable_silver, without removing any duplicates. Option C is not a valid syntax for Spark SQL, as there is noMERGE DEDUPLICATEstatement. Option D appends all the rows fromtable_bronzeintotable_silver, without removing any duplicates. Option E overwrites the existing data intable_silverwith the data fromtable_bronze, without removing any duplicates.Reference:Delete Duplicate using SPARK SQL,Spark SQL - How to Remove Duplicate Rows

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37 comments · newest first

Teri 10 months ago

Totally agree, Option C seems right!

Thomasena 11 months ago

I’m not sure if the output matches the query exactly.

Jules 11 months ago

Wait, are there really that many seniors in Canada?

Taryn 11 months ago

Definitely looks like Option C to me!

Marya 11 months ago

The query filters for age 75+ in Canada.

Antonio 12 months ago

I think I saw a question like this in our last mock exam. If I remember correctly, the output should have only Canadian records with age 75 or older.

Nobuko 12 months ago

I vaguely recall that the output should only include records that meet both conditions. I just can't remember if that was in option C or D.

Youlanda 12 months ago

I feel like I need to double-check the age and country columns in the options. I hope one of them clearly shows ages 75 and above from Canada.

Jacqueline 1 year ago

I think the query is pretty straightforward, but I'm not sure which option matches the output. I remember practicing similar questions, though.

Antonio 1 year ago

The SQL query is clear, but I'm not sure which of the table options best represents the results. I'll need to think this through carefully.

Luis 1 year ago

Option E seems to match the query output, with the age and country columns showing the filtered data. I'll go with that.

Makeda 1 year ago

Hmm, I'm a bit unsure about this one. I'll need to carefully review the SQL syntax and the image options to determine the right answer.

Raina 1 year ago

This SQL query looks straightforward, I should be able to identify the correct output table.

Isidra 1 year ago

Based on the SQL query, Option E is the correct answer. The table shows the age and country columns with the filtered data as expected.

Xochitl 1 year ago

No problem, I've got this. I'll just follow the instructions step-by-step and make sure I get the deployment spec file set up correctly.

Michell 1 year ago

Hmm, I'm not entirely sure about this one. I'll have to think it through carefully. Is it the qualifications or the duties that would be used for the evaluation criteria?

Lorean 1 year ago

I'm pretty confident this is asking about the second repository used in Red Hat OpenShift GitOps, which is the Environment configuration repository.

Melda 1 year ago

Ah, the joys of SQL. Where else can you filter out data faster than a grandparent filters out unsavory TV shows?

Adolph 1 year ago

↳ replying to Melda

SQL queries can be really powerful for filtering data efficiently.

Thea 1 year ago

↳ replying to Melda

Yes, I agree. Option E shows the records where age is 75 or above and country is Canada.

Lelia 1 year ago

↳ replying to Melda

I think the correct table representation is Option E.

Bettina 1 year ago

Wait, is this a trick question? I feel like I'm missing something here. I'd better go back and re-read the question carefully.

Jesusa 1 year ago

↳ replying to Bettina

Yeah, it's always good to double-check. We're here to help if you have any questions.

Shantell 1 year ago

↳ replying to Bettina

I agree, sometimes it's easy to miss important details. Let us know if you need any help.

Rolland 1 year ago

↳ replying to Bettina

Don't worry, take your time to review the question again. It's important to understand it fully.

Coral 1 year ago

Sweet, this is my kind of question! The query is spot on, and Option E looks like the winner to me. Time to move on to the next one.

Jesusita 1 year ago

Ah, this is a tricky one. The query seems straightforward, but I'm not too confident about Option E. I'll have to review the SQL concepts again.

Glynda 1 year ago

↳ replying to Jesusita

William: Let's review the SQL concepts to be sure.

Kris 1 year ago

↳ replying to Jesusita

User 3: Option E shows records where age is 75 or above and country is Canada.

William 1 year ago

↳ replying to Jesusita

User 2: I'm not sure, I need to double-check the SQL query.

Youlanda 1 year ago

↳ replying to Jesusita

User 1: I think Option E is correct.

Lilli 2 years ago

The query looks good, but I'm not sure if Option E is the correct answer. I'd double-check the output to make sure it matches the expected result.

Shasta 1 year ago

↳ replying to Lilli

I think Option E is the correct answer based on the query provided.

Pa 1 year ago

↳ replying to Lilli

I agree, it's always good to double-check the output to ensure accuracy.

Teri 2 years ago

I'm not sure, but based on the query, Option E seems to be the correct table.

Marla 2 years ago

I agree with Felicidad, the query filters for age >= 75 and country = 'canada'.

Felicidad 2 years ago

I think the answer is Option E.

Databricks Certified Data Analyst Associate Exam - Topic 4 Question 20 Discussion