Snowflake Exam ARA-C01 Topic 6 Question 24 Discussion

Actual exam question for Snowflake's ARA-C01 exam

Question #: 24
Topic #: 6

Consider the following COPY command which is loading data with CSV format into a Snowflake table from an internal stage through a data transformation query.

This command results in the following error:

SQL compilation error: invalid parameter 'validation_mode'

Assuming the syntax is correct, what is the cause of this error?

AThe VALIDATION_MODE parameter supports COPY statements that load data from external stages only.

BThe VALIDATION_MODE parameter does not support COPY statements with CSV file formats.

CThe VALIDATION_MODE parameter does not support COPY statements that transform data during a load.

DThe value return_all_errors of the option VALIDATION_MODE is causing a compilation error.

Show Suggested Answer

Suggested Answer: C

Effective pruning in Snowflake relies on the organization of data within micro-partitions. By using an ORDER BY clause with clustering keys when loading data into the reporting tables, Snowflake can better organize the data within micro-partitions. This organization allows Snowflake to skip over irrelevant micro-partitions during a query, thus improving query performance and reducing the amount of data scanned12.

* Snowflake Documentation on micro-partitions and data clustering2

* Community article on recognizing unsatisfactory pruning and improving it1

by Roosevelt at Apr 25, 2024, 06:06 PM

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1 months ago

I think the error is caused by the VALIDATION_MODE parameter.

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