Independence Day Deal! Unlock 25% OFF Today – Limited-Time Offer - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions
Mail Us support@pass4success.com
Location US
Mob_nav_barsMENU

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

Actual exam question for Databricks's Databricks Certified Data Analyst Associate exam
Question #: 20
Topic #: 4
[All Databricks Certified Data Analyst Associate Questions]

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?

A)

B)

C)

D)

E)

Show Suggested Answer Hide Answer
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


by Eun at Aug 05, 2024, 04:23 PM

Limited Time Offer

25%

Off

Get Premium Databricks Certified Data Analyst Associate Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel
Melda
1 months ago
Ah, the joys of SQL. Where else can you filter out data faster than a grandparent filters out unsavory TV shows?
upvoted 0 times
Adolph
4 days ago
SQL queries can be really powerful for filtering data efficiently.
upvoted 0 times
...
Thea
8 days ago
Yes, I agree. Option E shows the records where age is 75 or above and country is Canada.
upvoted 0 times
...
Lelia
9 days ago
I think the correct table representation is Option E.
upvoted 0 times
...
...
Bettina
2 months 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.
upvoted 0 times
Jesusa
3 days ago
Yeah, it's always good to double-check. We're here to help if you have any questions.
upvoted 0 times
...
Shantell
4 days ago
I agree, sometimes it's easy to miss important details. Let us know if you need any help.
upvoted 0 times
...
Rolland
5 days ago
Don't worry, take your time to review the question again. It's important to understand it fully.
upvoted 0 times
...
...
Coral
2 months 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.
upvoted 0 times
...
Jesusita
2 months 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.
upvoted 0 times
Glynda
30 days ago
William: Let's review the SQL concepts to be sure.
upvoted 0 times
...
Kris
1 months ago
User 3: Option E shows records where age is 75 or above and country is Canada.
upvoted 0 times
...
William
1 months ago
User 2: I'm not sure, I need to double-check the SQL query.
upvoted 0 times
...
Youlanda
2 months ago
User 1: I think Option E is correct.
upvoted 0 times
...
...
Lilli
2 months 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.
upvoted 0 times
Shasta
1 months ago
I think Option E is the correct answer based on the query provided.
upvoted 0 times
...
Pa
1 months ago
I agree, it's always good to double-check the output to ensure accuracy.
upvoted 0 times
...
...
Teri
2 months ago
I'm not sure, but based on the query, Option E seems to be the correct table.
upvoted 0 times
...
Marla
3 months ago
I agree with Felicidad, the query filters for age >= 75 and country = 'canada'.
upvoted 0 times
...
Felicidad
3 months ago
I think the answer is Option E.
upvoted 0 times
...

Save Cancel