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A query containing a WHERE clause is running longer than expected. The Query Profile shows that all micro-partitions being scanned How should this query be optimized?
Which minimum Snowflake edition allows for a dedicated metadata store?
How can the outer array structure of a semi-structured file be removed?
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Question 228 - COF-C02 discussion

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Which of the following can be used when unloading data from Snowflake? (Choose two.)

A.
When unloading semi-structured data, it is recommended that the STRIP_OUTER_ARRAY option be used.
Answers
A.
When unloading semi-structured data, it is recommended that the STRIP_OUTER_ARRAY option be used.
B.
Use the ENCODING file format option to change the encoding from the default UTF-8.
Answers
B.
Use the ENCODING file format option to change the encoding from the default UTF-8.
C.
The OBJECT_CONSTRUCT function can be used to convert relational data to semi-structured data.
Answers
C.
The OBJECT_CONSTRUCT function can be used to convert relational data to semi-structured data.
D.
By using the SINGLE = TRUE parameter, a single file up to 5 GB in size can be exported to the storage layer.
Answers
D.
By using the SINGLE = TRUE parameter, a single file up to 5 GB in size can be exported to the storage layer.
E.
Use the PARSE_JSON function to ensure structured data will be unloaded into the VARIANT data type.
Answers
E.
Use the PARSE_JSON function to ensure structured data will be unloaded into the VARIANT data type.
Suggested answer: C, D

Explanation:

The OBJECT_CONSTRUCT function is used in Snowflake to create a JSON object from relational data, which is useful when unloading semi-structured data. The SINGLE = TRUE parameter is used when unloading data to ensure that the data is exported as a single file, which can be up to 5 GB in size. References: [COF-C02] SnowPro Core Certification Exam Study Guide

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asked 23/09/2024
Jerome Fortin
34 questions
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