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Snowflake ADA-C01 Exam - Topic 4 Question 39 Discussion

A user accidentally truncated the data from a frequently-modified table. The Administrator has reviewed the query history and found the truncate statement which was run on 2021-12-12 15:00 with query ID 8e5d0ca9-005e-44e6-b858-a8f5b37c5726. Which of the following statements would allow the Administrator to create a copy of the table as it was exactly before the truncated statement was executed, so it can be checked for integrity before being inserted into the main table?
D) CREATE TABLE RESTORE_TABLE CLONE CURRENT_TABLE before (statement => '8e5d0ca9-005e-44e6-b858-a8f5b37c5726');
A) CREATE TABLE RESTORE_TABLE CLONE CURRENT_TABLE BEFORE (timestamp => '2021-12-12 00:00');
B) SELECT * FROM CURRENT_TABLE before (statement => '8e5d0ca9-005e-44e6-b858-a8f5b37c5726');
C) INSERT INTO CURRENT_TABLE SELECT * FROM CURRENT_TABLE before (statement => '8e5d0ca9-005e-44e6-b858-a8f5b37c5726');

Snowflake ADA-C01 Exam - Topic 4 Question 39 Discussion

Actual exam question for Snowflake's ADA-C01 exam
Question #: 39
Topic #: 4
[All ADA-C01 Questions]

A user accidentally truncated the data from a frequently-modified table. The Administrator has reviewed the query history and found the truncate statement which was run on 2021-12-12 15:00 with query ID 8e5d0ca9-005e-44e6-b858-a8f5b37c5726. Which of the following statements would allow the Administrator to create a copy of the table as it was exactly before the truncated statement was executed, so it can be checked for integrity before being inserted into the main table?

Show Suggested Answer Hide Answer
Suggested Answer: D

Scenario:

A TRUNCATE command was accidentally run on a frequently modified table.

Query ID and timestamp are known.

Goal: restore a copy of the table as it existed right before the problematic statement, without affecting the current table.

Why Option D is Correct:

sql

CopyEdit

CREATE TABLE RESTORE_TABLE CLONE CURRENT_TABLE

BEFORE (STATEMENT => '8e5d0ca9-005e-44e6-b858-a8f5b37c5726');

This uses Zero-Copy Cloning + Time Travel.

The BEFORE (STATEMENT => ...) clause restores the exact state of the table before the TRUNCATE ran.

Creating a clone ensures the original table remains untouched for integrity checks before merging data back.

Why Others Are Incorrect:

A . BEFORE (timestamp => '2021-12-12 00:00')

Wrong timestamp: that's 15 hours before the truncate happened. Too early; may lose needed updates.

B . SELECT * FROM CURRENT_TABLE before (statement => ...)

Syntax is invalid: SELECT can't use BEFORE (STATEMENT => ...) directly like this.

C . INSERT INTO CURRENT_TABLE SELECT * FROM CURRENT_TABLE before (statement => ...)

Same syntax issue. Also risky --- directly inserting into the original table without validating the data first.

SnowPro Administrator Reference:

Cloning with Time Travel

Time Travel with Statement ID


by Lavonne at Jul 08, 2025, 10:33 AM

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Sherron
7 months ago
Wait, can you really clone a table like that? Sounds too easy.
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Selene
7 months ago
A is totally wrong, can't use a timestamp like that!
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Leslee
7 months ago
Option D seems right, it uses the statement ID.
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Jesus
7 months ago
I think B is better, it directly references the statement.
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Laurel
8 months ago
Not sure about D, I feel like it might miss some data nuances.
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Rasheeda
8 months ago
I’m leaning towards option D, but I’m not confident about the syntax. It’s tricky with all these variations!
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Nelida
8 months ago
I feel like option A might be incorrect because it uses "BEFORE" with a timestamp, which seems off to me.
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Theresia
8 months ago
I remember practicing a similar question where we had to restore data, but I can't recall if we used "CLONE" or "SELECT" for that.
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Jerrod
8 months ago
I think option D sounds familiar, but I'm not entirely sure if "before" is the right keyword to use there.
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Ronny
9 months ago
This is a good test of our database management skills. I'll need to think through the implications of each option carefully before making a decision.
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Lyndia
9 months ago
I'm feeling pretty confident about this one. I think option D is the way to go - it looks like the most straightforward way to create a clone of the table before the truncation.
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Suzi
9 months ago
Okay, I think I've got a strategy for this. The key is to find the query that truncated the table and use that to restore the data. Let me double-check the options.
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Gilma
9 months ago
Hmm, I'm a bit confused by the wording here. I'll need to make sure I understand exactly what the question is asking before I choose an answer.
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Anisha
9 months ago
This looks like a tricky one. I'll need to carefully read through the options and think about the best way to restore the table to its pre-truncated state.
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Blossom
11 months ago
Haha, I bet the administrator wishes they had a time machine to go back and stop that accidental truncate. Option D is definitely the way to go.
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Shenika
10 months ago
User 3: The administrator will be relieved to have a copy of the table before the mishap.
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Hoa
11 months ago
User 2: Agreed, creating a clone of the table before the truncate is the safest bet.
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Luisa
11 months ago
User 1: Yeah, option D seems like the best choice.
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Weldon
12 months ago
I'm a bit confused by the timestamp approach in option A. Shouldn't we be using the exact statement ID to restore the table?
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Rosalind
12 months ago
I'm not sure, but I think A could also be a possible solution.
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Jame
1 year ago
I agree with Tish, D seems like the correct option.
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Marya
1 year ago
Option D looks like the way to go. Creating a clone of the table before the truncate statement seems like the most straightforward approach.
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Brandon
11 months ago
I agree, creating a clone of the table before the truncate statement is the safest way to ensure data integrity.
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Dudley
11 months ago
Option D looks like the way to go. Creating a clone of the table before the truncate statement seems like the most straightforward approach.
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Tish
1 year ago
I think the answer is D.
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