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Exam SnowPro Core topic 1 question 666 discussion

Actual exam question from Snowflake's SnowPro Core
Question #: 666
Topic #: 1
[All SnowPro Core Questions]

A complex SQL query involving eight tables with joins is taking a while to execute. The Query Profile shows that all partitions are being scanned.

What is causing the query performance issue?

  • A. Pruning is not being performed efficiently.
  • B. A huge volume of data is being fetched, with many joins applied.
  • C. Incorrect joins are being used, leading to scanning and pulling too many records.
  • D. The columns in the micro-partitions need granular ordering based on the dataset.
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Suggested Answer: A 🗳️
by MultiCloudIronMan at July 6, 2023, 10:24 p.m.

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MultiCloudIronMan
Highly Voted 1 year, 4 months ago
Selected Answer: A
correct
upvoted 6 times
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0e504b5
Most Recent 9 months ago
Selected Answer: A
A is correct https://community.snowflake.com/s/question/0D5Do00000HbmAdKAJ/what-exactly-does-pruning-do-in-snowflake Because of pruning less of micro portions are scanned, which means less bytes of data is scanned. That improves query response.
upvoted 1 times
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ludaka
1 year, 1 month ago
I think the answer is C. https://docs.snowflake.com/en/user-guide/ui-query-profile#exploding-joins
upvoted 2 times
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