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Exam SnowPro Core topic 1 question 566 discussion

Actual exam question from Snowflake's SnowPro Core
Question #: 566
Topic #: 1
[All SnowPro Core Questions]

A Snowflake user wants to unload data from a relational table sized 5 GB using CSV. The extract needs to be as performant as possible.

What should the user do?

  • A. Use Parquet as the unload file format, using Parquet's default compression feature.
  • B. Use a regular expression in the stage specification of the COPY command to restrict parsing time.
  • C. Increase the default MAX_FILE_SIZE to 5 GB and set SINGLE = true to produce a single file.
  • D. Leave the default MAX_FILE_SIZE to 16 MB to take advantage of parallel operations.
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Suggested Answer: D 🗳️

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Franzoz
2 weeks ago
D correct. Performant => parallel processing of file creation/unloading
upvoted 1 times
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bibisa
9 months, 4 weeks ago
Selected Answer: D
By default, COPY INTO location statements separate table data into a set of output files to take advantage of parallel operations. The maximum size for each file is set using the MAX_FILE_SIZE copy option. The default value is 16777216 (16 MB) but can be increased to accommodate larger files. The maximum file size supported is 5 GB for Amazon S3, Google Cloud Storage, or Microsoft Azure stages.
upvoted 4 times
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ShagunMittal
10 months ago
Selected Answer: D
https://docs.snowflake.com/en/user-guide/data-unload-considerations#unloading-to-a-single-file
upvoted 3 times
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Simbajagnole
10 months ago
D is more performant https://docs.snowflake.com/en/user-guide/data-unload-considerations
upvoted 3 times
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