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Exam SnowPro Core topic 1 question 497 discussion

Actual exam question from Snowflake's SnowPro Core
Question #: 497
Topic #: 1
[All SnowPro Core Questions]

Which use case will always cause an exploding join in Snowflake?

  • A. A query that has more than 10 left outer joins.
  • B. A query that is using a UNION without an ALL.
  • C. A query that has not specified join criteria for tables.
  • D. A query that has requested too many columns of data.
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Suggested Answer: C 🗳️

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PrasantSadangi
1 month ago
Selected Answer: C
“Exploding” joins One of the common mistakes SQL users make is joining tables without providing a join condition (resulting in a “Cartesian product”), or providing a condition where records from one table match multiple records from another table. For such queries, the Join operator produces significantly (often by orders of magnitude) more tuples than it consumes.
upvoted 1 times
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_yyukta
8 months ago
Selected Answer: C
C. A query that has not specified join criteria for tables
upvoted 1 times
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Isio05
1 year ago
Selected Answer: C
C, other may cause issues but also may work correctly
upvoted 1 times
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Harpreetwal
1 year, 6 months ago
Selected Answer: C
C Correct, It's also called cartesian product
upvoted 1 times
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MultiCloudIronMan
1 year, 6 months ago
Selected Answer: C
Answer is C
upvoted 1 times
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EmiB
1 year, 7 months ago
Selected Answer: C
C. A query that has not specified join criteria for tables.
upvoted 2 times
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KarBiswa
1 year, 7 months ago
https://docs.snowflake.com/en/user-guide/ui-snowsight-activity#label-exploding-join C is right option
upvoted 2 times
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EmiB
1 year, 7 months ago
Selected Answer: A
A&C - both should
upvoted 1 times
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lalit_2k311
1 year, 8 months ago
C https://select.dev/posts/snowflake-query-profile
upvoted 2 times
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