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  1. Home
  2. Snowflake Certification
  3. COF-C03 Exam
  4. Snowflake.COF-C03.v2026-06-01.q489 Dumps
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Question 291

Which constraint is enforced for standard Snowflake tables?

Correct Answer: A
The correct answer is A. NOT NULL .
For standard Snowflake tables, Snowflake enforces the NOT NULL constraint. Other constraints such as PRIMARY KEY, FOREIGN KEY, and UNIQUE can be defined, but they are generally informational and are not enforced for standard tables.
Why A is correct:
A NOT NULL constraint prevents NULL values from being inserted into the constrained column.
Example:
CREATE TABLE customers (
customer_id NUMBER NOT NULL,
customer_name STRING
);
Why the other options are incorrect:
B). PRIMARY KEY constraints are not enforced for standard Snowflake tables.
C). FOREIGN KEY constraints are not enforced for standard Snowflake tables.
D). UNIQUE constraints are not enforced for standard Snowflake tables.
Official Snowflake documentation reference:
Snowflake documentation explains that for standard tables, NOT NULL constraints are enforced, while unique, primary key, and foreign key constraints are not enforced.
Reference: Snowflake Documentation - Constraints; Snowflake Documentation - Table constraints; SnowPro Core Study Guide - SQL and Snowflake Objects.
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Question 292

Which Snowflow object does not consume and storage costs?

Correct Answer: C
Temporary tables in Snowflake do not consume storage costs. They are designed for transient data that is needed only for the duration of a session. Data stored in temporary tables is held in the virtual warehouse's cache and does not persist beyond the session's lifetime, thereby not incurring any storage charges.
References:
Snowflake Documentation: Temporary Tables
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Question 293

Which command should be used to assign a key to a Snowflake user who needs to connect using key pair authentication?

Correct Answer: D
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Question 294

In which hierarchy is tag inheritance possible?

Correct Answer: D
In Snowflake, tag inheritance is a feature that allows tags, which are key-value pairs assigned to objects for the purpose of data governance and metadata management, to be inherited within a hierarchy. The hierarchy in which tag inheritance is possible is from Schema to Table to Column. This means that a tag applied to a schema can be inherited by the tables within that schema, and a tag applied to a table can be inherited by the columns within that table.
References: Snowflake Documentation on Tagging and Object Hierarchy
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Question 295

When using the COPY INTO < location > command, which parameter is used to unload table rows into separate files?

Correct Answer: B
The correct answer is B. PARTITION BY .
The PARTITION BY option in COPY INTO < location > partitions unloaded data into separate files based on the expression specified. This is commonly used to organize unloaded files by values such as date, region, or another column.
Why B is correct:
PARTITION BY controls how unloaded rows are grouped into different output paths/files.
Example:
COPY INTO @my_stage/sales/
FROM sales
PARTITION BY (TO_DATE(sale_date))
FILE_FORMAT = (TYPE = CSV);
This unloads rows into separate output paths based on the sale_date expression.
Why the other options are incorrect:
A). DETAILED_OUTPUT controls the amount of unload result information returned by the command.
C). FILE_FORMAT controls the format of the unloaded files, such as CSV, JSON, or Parquet.
D). HEADER controls whether column headings are included in unloaded output files.
Official Snowflake documentation reference:
Snowflake documentation for COPY INTO < location > describes PARTITION BY as the option used to partition unloaded rows into separate files based on an expression.
Reference: Snowflake Documentation - COPY INTO < location > ; Snowflake Documentation - Unloading data with partitioning; SnowPro Core Study Guide - Data Loading and Unloading.
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