Discover how Snowflake handles default timestamp values during data loading with COPY statements. Learn about the consistent timestamp assignment for all rows loaded in a single COPY operation, ensuring data integrity and simplifying auditing processes.
Table of Contents
Question
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.
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.
D. All rows loaded using a specific COPY statement will have the same timestamp value.
Answer
D. All rows loaded using a specific COPY statement will have the same timestamp value.
Explanation
When loading data into a Snowflake table with a column that has a default value of CURRENT_TIME() or CURRENT_TIMESTAMP(), the timestamp is captured at the start of the COPY statement execution. This means that all rows inserted by that particular COPY statement will have an identical timestamp value, regardless of when the individual rows were read from the source or created in the source system.
Snowflake SnowPro Advanced Architect certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the Snowflake SnowPro Advanced Architect exam and earn Snowflake SnowPro Advanced Architect certification.