The process of ensuring that data is consistent, reliable, and usable during the ETL process is known as data _______.

  • Aggregation
  • Disintegration
  • Homogenization
  • Validation
Data "Validation" in the ETL process involves checking and verifying data for consistency, accuracy, and reliability. It ensures that data conforms to predefined rules and standards, making it suitable for analysis and reporting in a data warehouse. This step is critical for maintaining data quality.
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