BlackFriday 2024! Hurry Up, Grab the Special Discount - Save 25% - Ends In 00:00:00 Coupon code: SAVE25
Welcome to Pass4Success

- Free Preparation Discussions

Databricks Exam Databricks-Certified-Data-Analyst-Associate Topic 4 Question 11 Discussion

Actual exam question for Databricks's Databricks-Certified-Data-Analyst-Associate exam
Question #: 11
Topic #: 4
[All Databricks-Certified-Data-Analyst-Associate Questions]

A data analyst has been asked to count the number of customers in each region and has written the following query:

If there is a mistake in the query, which of the following describes the mistake?

Show Suggested Answer Hide Answer
Suggested Answer: B

In the provided SQL query, the data analyst is trying to count the number of customers in each region. However, they made a mistake by not including the ''GROUP BY'' clause to group the results by region. Without this clause, the query will not return counts for each distinct region but rather an error or incorrect result.Reference: The need for a GROUP BY clause in such queries can be understood from Databricks SQL documentation:Databricks SQL.

I also noticed that you uploaded an image with your question. The image shows a snippet of an SQL query written in plain text on a white background. The query is attempting to select regions and count customers from a ''customers'' table and order the results by region. There's no visible syntax highlighting or any other color - it's monochromatic. The query is the same as the one in your question. I'm not sure why you included the image, but maybe you wanted to show me the exact format of your query. If so, you can also use code blocks to display formatted content such as SQL queries. For example, you can write:

SELECT region, count(*) AS number_of_customers

FROM customers

ORDER BY region;

This way, you can avoid uploading images and make your questions more clear and concise. I hope this helps.


Contribute your Thoughts:

Karan
6 months ago
I think there are no mistakes in the query, it looks good to me.
upvoted 0 times
...
Twana
6 months ago
I agree with the query should have a GROUP BY region clause to count customers in each region.
upvoted 0 times
...
Karina
6 months ago
I believe the mistake is that the query is using count('), which will count all the customers in the customers table.
upvoted 0 times
...
Niesha
6 months ago
I think the mistake is that the query is missing a GROUP BY region clause.
upvoted 0 times
...
Francene
7 months ago
I agree with Timothy, the query is missing a GROUP BY region clause.
upvoted 0 times
...
Timothy
7 months ago
No, I believe it's actually in option B.
upvoted 0 times
...
Cammy
7 months ago
I think the mistake is in option A.
upvoted 0 times
...

Save Cancel