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Snowflake Exam ARA-C01 Topic 3 Question 34 Discussion

Actual exam question for Snowflake's ARA-C01 exam
Question #: 34
Topic #: 3
[All ARA-C01 Questions]

A Snowflake Architect Is working with Data Modelers and Table Designers to draft an ELT framework specifically for data loading using Snowpipe. The Table Designers will add a timestamp column that Inserts the current tlmestamp as the default value as records are loaded into a table. The Intent is to capture the time when each record gets loaded into the table; however, when tested the timestamps are earlier than the loae_take column values returned by the copy_history function or the Copy_HISTORY view (Account Usage).

Why Is this occurring?

Show Suggested Answer Hide Answer
Suggested Answer: D

The correct answer is D because the CURRENT_TIME function returns the current timestamp at the start of the statement execution, not at the time of the record insertion. Therefore, if the load operation takes some time to complete, the CURRENT_TIME value may be earlier than the actual load time.

Option A is incorrect because the parameter setup mismatches do not affect the timestamp values. The parameters are used to control the behavior and performance of the load operation, such as the file format, the error handling, the purge option, etc.

Option B is incorrect because the Snowflake timezone parameter and the cloud provider's parameters are independent of each other. The Snowflake timezone parameter determines the session timezone for displaying and converting timestamp values, while the cloud provider's parameters determine the physical location and configuration of the storage and compute resources.

Option C is incorrect because the localtimestamp and systimestamp functions are not relevant for the Snowpipe load operation. The localtimestamp function returns the current timestamp in the session timezone, while the systimestamp function returns the current timestamp in the system timezone. Neither of them reflect the actual load time of the records.Reference:

Snowflake Documentation: Loading Data Using Snowpipe: This document explains how to use Snowpipe to continuously load data from external sources into Snowflake tables. It also describes the syntax and usage of the COPY INTO command, which supports various options and parameters to control the loading behavior.

Snowflake Documentation: Date and Time Data Types and Functions: This document explains the different data types and functions for working with date and time values in Snowflake. It also describes how to set and change the session timezone and the system timezone.

Snowflake Documentation: Querying Metadata: This document explains how to query the metadata of the objects and operations in Snowflake using various functions, views, and tables. It also describes how to access the copy history information using the COPY_HISTORY function or the COPY_HISTORY view.


Contribute your Thoughts:

Iola
2 months ago
Wait, so the timestamp is recorded when the load operation is compiled, not when the record is actually inserted? That's like trying to time-travel with a broken DeLorean.
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Shayne
29 days ago
D: The CURRENT_TIME is evaluated when the load operation is compiled in cloud services rather than when the record is inserted into the table.
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Beckie
1 months ago
C: The Table Designer team has not used the localtimestamp or systimestamp functions in the Snowflake copy statement.
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Gayla
1 months ago
B: The Snowflake timezone parameter is different from the cloud provider's parameters causing the mismatch.
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Krystal
2 months ago
A: The timestamps are different because there are parameter setup mismatches. The parameters need to be realigned
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Destiny
2 months ago
I believe the issue could be that the CURRENT_TIME is evaluated when the load operation is compiled in cloud services.
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Tatum
2 months ago
Haha, it's like the cloud services are on a different timeline than the Snowflake table! Talk about a temporal anomaly. I'd go with option D on this one.
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Marjory
2 months ago
I think we need to make sure the CURRENT_TIME is evaluated at the right time during the load operation.
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Chauncey
2 months ago
Yeah, it does seem like a temporal anomaly with the timestamps being off.
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Adaline
2 months ago
I agree, option D seems to make the most sense in this situation.
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Yong
2 months ago
Maybe the Snowflake timezone parameter is causing the mismatch with the cloud provider's parameters.
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Tammara
3 months ago
I agree with Floyd, the parameters need to be realigned for accurate timestamps.
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Donte
3 months ago
I think the Table Designer team should have used the localtimestamp or systimestamp functions instead of the default timestamp. That might have resolved the mismatch.
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Sherita
3 months ago
The timestamp issue is likely due to the parameter setup mismatches. The Snowflake and cloud provider's timezones need to be aligned for the timestamps to match correctly.
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Youlanda
2 months ago
B) The Snowflake timezone parameter is different from the cloud provider's parameters causing the mismatch.
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Youlanda
2 months ago
A) The timestamps are different because there are parameter setup mismatches. The parameters need to be realigned.
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Floyd
4 months ago
I think the timestamps are different because of parameter setup mismatches.
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