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Databricks Certified Data Analyst Associate Exam - Topic 5 Question 32 Discussion

How can a data analyst determine if query results were pulled from the cache?
E) Go to the Data tab and click Last Query. The details of the query will show if the results came from the cache. Databricks SQL uses a query cache to store the results of queries that have been executed previously. This improves the performance and efficiency of repeated queries. To determine if a query result was pulled from the cache, you can go to the Query History tab in the Databricks SQL UI and click on the text of the query. A slideout will appear on the right side of the screen, showing the query details, including the cache status. If the result came from the cache, the cache status will show ''Cached''. If the result did not come from the cache, the cache status will show ''Not cached''. You can also see the cache hit ratio, which is the percentage of queries that were served from the cache.Reference: The answer can be verified from Databricks SQL documentation which provides information on how to use the query cache and how to check the cache status. Reference link: Databricks SQL - Query Cache
A) Go to the Query History tab and click on the text of the query. The slideout shows if the results came from the cache.
B) Go to the Alerts tab and check the Cache Status alert.
C) Go to the Queries tab and click on Cache Status. The status will be green if the results from the last run came from the cache.
D) Go to the SQL Warehouse (formerly SQL Endpoints) tab and click on Cache. The Cache file will show the contents of the cache.

Databricks Certified Data Analyst Associate Exam - Topic 5 Question 32 Discussion

Actual exam question for Databricks's Databricks Certified Data Analyst Associate exam
Question #: 32
Topic #: 5
[All Databricks Certified Data Analyst Associate Questions]

How can a data analyst determine if query results were pulled from the cache?

Show Suggested Answer Hide Answer
Suggested Answer: E

A user-defined function (UDF) is a function defined by a user, allowing custom logic to be reused in the user environment1.To apply a UDF to a table, the syntax isSELECT udf_name(column_name) AS alias FROM table_name2. Therefore, option E is the correct way to use the UDFpriceto create a new columncustomer_pricebased on the existing columnscustomer_spendandcustomer_unitsfrom the tablecustomer_summary.Reference:

What are user-defined functions (UDFs)?

User-defined scalar functions - SQL

V


by Eladia at Jan 24, 2025, 08:01 AM

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Lizbeth
7 months ago
Nah, I think it’s in the Queries tab, not the Data tab.
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Denna
8 months ago
Wait, is there really a cache hit ratio? That's cool!
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Rochell
8 months ago
I thought it was in the Alerts tab?
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Isidra
8 months ago
Totally agree, that's the easiest way!
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Kattie
8 months ago
You can check the Query History tab for cache status.
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Mary
9 months ago
I remember reading about the SQL Warehouse tab, but I thought it was more about managing queries than checking cache.
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Altha
9 months ago
I’m pretty confident that the Queries tab has something to do with cache status, but I can't recall the exact details.
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Gary
9 months ago
I feel like I practiced a question similar to this, and I think it was about the Alerts tab, but that doesn't sound right now.
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Marquetta
9 months ago
I think I remember something about checking the Query History tab for cache status, but I'm not entirely sure if that's the right place.
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Kirk
9 months ago
I've got this one. The key is to go to the Query History tab, click on the query text, and the slideout will show you if the results came from the cache. Simple as that. I just need to remember those steps during the exam.
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Galen
9 months ago
Okay, this seems straightforward. Based on the options, it looks like the best way to check if the query results were pulled from the cache is to go to the Query History tab and look at the details for the specific query. That should show the cache status.
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Verlene
9 months ago
Hmm, I'm a bit confused by this one. I know Databricks SQL has a query cache, but I'm not sure exactly how to check the cache status. I'll need to review the Databricks SQL documentation to make sure I understand the right steps.
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Trevor
9 months ago
I think I can figure this out. The question is asking how to determine if query results were pulled from the cache, and the options mention things like the Query History tab and the Cache Status alert. I'll need to remember where to look for that information.
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Lemuel
1 year ago
Ha! I bet the developers who wrote this question are sitting back and chuckling at how many people are going to get this wrong. Gotta love those tricky certification exams.
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Rana
1 year ago
C) Go to the Queries tab and click on Cache Status. The status will be green if the results from the last run came from the cache.
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Jess
1 year ago
B) Go to the Alerts tab and check the Cache Status alert.
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Jolene
1 year ago
A) Go to the Query History tab and click on the text of the query. The slideout shows if the results came from the cache.
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Arthur
1 year ago
This is a tricky one. I bet the answer is buried somewhere in the Databricks SQL documentation, which is like finding a needle in a haystack. Time to do some serious reading!
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Martin
1 year ago
I prefer going to the SQL Warehouse tab and clicking on Cache to check the cache file contents.
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Valentin
1 year ago
No, you should actually go to the Queries tab and click on Cache Status to see if the results came from the cache.
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Annamae
1 year ago
I think the answer is to go to the Query History tab and check the cache status.
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Delisa
1 year ago
Hold up, are they really asking me to go digging through all these different tabs just to figure out if the results were cached? Talk about a roundabout way to do things.
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Wade
1 year ago
Hmm, the cache status is important, but the question doesn't explicitly say to check the Query History tab. I'll have to think this through carefully.
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Monroe
1 year ago
C) Go to the Queries tab and click on Cache Status. The status will be green if the results from the last run came from the cache.
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Thomasena
1 year ago
B) Go to the Alerts tab and check the Cache Status alert.
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Tora
1 year ago
A) Go to the Query History tab and click on the text of the query. The slideout shows if the results came from the cache.
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Annice
1 year ago
Aha! Finally, a question that tests my understanding of the Databricks SQL query cache. This is crucial for optimizing performance, so I better get this right.
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Dudley
1 year ago
User 2: You can check the cache status in the Query History tab to see if the results came from the cache.
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Francoise
1 year ago
User 1: I always struggle with determining if query results were pulled from the cache.
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Lorean
1 year ago
I'm not sure, but I think option C) Go to the Queries tab and click on Cache Status might also be a good way to check if the results came from the cache.
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Jina
1 year ago
I agree with Isaiah. Checking the query history seems like the best way to determine if the results were pulled from the cache.
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Isaiah
1 year ago
I think the answer is A) Go to the Query History tab and click on the text of the query. The slideout shows if the results came from the cache.
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