ExamGecko
Question list
Search
Search

List of questions

Search

Question 38 - ARA-C01 discussion

Report
Export

When loading data into a table that captures the load time in a column with a default value of either CURRENT_TIME () or CURRENT_TIMESTAMP() what will occur?

A.
All rows loaded using a specific COPY statement will have varying timestamps based on when the rows were inserted.
Answers
A.
All rows loaded using a specific COPY statement will have varying timestamps based on when the rows were inserted.
B.
Any rows loaded using a specific COPY statement will have varying timestamps based on when the rows were read from the source.
Answers
B.
Any rows loaded using a specific COPY statement will have varying timestamps based on when the rows were read from the source.
C.
Any rows loaded using a specific COPY statement will have varying timestamps based on when the rows were created in the source.
Answers
C.
Any rows loaded using a specific COPY statement will have varying timestamps based on when the rows were created in the source.
D.
All rows loaded using a specific COPY statement will have the same timestamp value.
Answers
D.
All rows loaded using a specific COPY statement will have the same timestamp value.
Suggested answer: D

Explanation:

According to the Snowflake documentation, when loading data into a table that captures the load time in a column with a default value of either CURRENT_TIME () or CURRENT_TIMESTAMP(), the default value is evaluated once per COPY statement, not once per row. Therefore, all rows loaded using a specific COPY statement will have the same timestamp value. This behavior ensures that the timestamp value reflects the time when the data was loaded into the table, not when the data was read from the source or created in the source.Reference:

Snowflake Documentation: Loading Data into Tables with Default Values

Snowflake Documentation: COPY INTO table

asked 23/09/2024
Carlos John Ricafort
39 questions
User
Your answer:
0 comments
Sorted by

Leave a comment first