Snowflake Exam COF-C02 Topic 6 Question 56 Discussion

Actual exam question for Snowflake's COF-C02 exam

Question #: 56
Topic #: 6

When unloading data, which combination of parameters should be used to differentiate between empty strings and NULL values? (Select TWO).

AESCAPE_UNENCLOSED_FIELD

BREPLACE_INVALID_CHARACTERS

CFIELD_OPTIONALLY_ENCLOSED_BY

DEMPTY_FIELD_AS_NULL

ESKIP_BLANK_LINES

Show Suggested Answer

Suggested Answer: C, D

When unloading data in Snowflake, it is essential to differentiate between empty strings and NULL values to preserve data integrity. The parameters FIELD_OPTIONALLY_ENCLOSED_BY and EMPTY_FIELD_AS_NULL are used together to address this:

FIELD_OPTIONALLY_ENCLOSED_BY: This parameter specifies the character used to enclose fields, which can differentiate between empty strings (as enclosed fields) and NULLs.

EMPTY_FIELD_AS_NULL: By setting this parameter, Snowflake interprets empty fields as NULL values when unloading data, ensuring accurate representation of NULLs versus empty strings.

These parameters are crucial when exporting data for systems that need explicit differentiation between NULL and empty string values.

by Filiberto at Jun 11, 2025, 12:08 PM

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Gwen

1 days ago

I think the correct answer is D and E. Differentiating between empty strings and NULL values is crucial, and those two options seem to address that directly.

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