One of the challenges in the Extract phase of ETL is dealing with _______ data sources, where data structures may vary.

  • Heterogeneous
  • Static
  • Structured
  • Transactional
In the ETL (Extract, Transform, Load) process, one of the challenges is dealing with heterogeneous data sources, where data structures may vary significantly. This diversity in data sources can include structured, semi-structured, and unstructured data, making it essential to have a flexible approach to data extraction.
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