COF-C03 Data Loading, Unloading, and Connectivity Practice Question
What is the purpose of the PURGE = TRUE option in a COPY INTO command?
⚠ Common exam trap
Candidates mistakenly believe PURGE = TRUE deletes the target table or the stage itself. It only targets the specific files processed during that single COPY command execution.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It removes data files from the stage after they are successfully loaded.
The PURGE parameter provides an automated way to manage the lifecycle of files in a stage. In many workflows, once a file has been successfully loaded into Snowflake, it is no longer needed in the staging area. Automating the deletion helps maintain a clean environment and can reduce storage costs in internal stages.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
It deletes all records from the target table before starting the load.
Why it's wrong here
Deleting records from a table is a TRUNCATE or DELETE operation. The PURGE option in the COPY command refers specifically to the source files in the stage, not the data already residing in the Snowflake database tables, ensuring that the target table remains unaffected by this setting.
- ✓
It removes data files from the stage after they are successfully loaded.
Why this is correct
When PURGE is set to TRUE, Snowflake automatically deletes the source files from the internal or external stage once the COPY command completes successfully. This is a convenient way to clean up staging areas without needing a separate manual or scripted step to delete files.
- ✗
It clears the Snowflake metadata cache to allow for a full reload of the data.
Why it's wrong here
Clearing the load metadata is done by using the FORCE = TRUE parameter. PURGE does not affect the metadata that tracks which files have been loaded; it only affects the physical existence of the files themselves in the staging location after the operation has finished.
- ✗
It removes only the files that failed to load due to formatting errors.
Why it's wrong here
The PURGE parameter only acts on files that have been successfully processed and loaded. If a file fails to load, it is generally left in the stage so that the user can investigate the cause of the error, correct the issue, and attempt the load again.
About these practice questions
Courseiva writes every COF-C03 question from scratch — 280 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Snowflake exam blueprint
This COF-C03 practice question is part of Courseiva's free Snowflake certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the COF-C03 exam.