ETL Testing - extract, transform, load Practice Test
ETL Testing - extract, transform, load ETL Testing ETL Data Transformation Rules 2
When testing ETL aggregation transformations, which validation is MOST critical?
Select your answer
A
Checking that source file timestamps are preserved
B
Verifying that SUM, COUNT, and AVG results match independently calculated totals
C
Confirming that all indexes were rebuilt
D
Validating that column names match the source
Hint
