The main distinction between ETL and ELT pipelines lies in the order of their operations, impacting data processing efficiency and adaptability in modern data environments.
In ETL pipelines, the Extract, Transform, Load sequence ensures that data is refined before being loaded into target repositories, making querying faster and more efficient.
On the other hand, ELT pipelines prioritize quick data loading into data lakes, followed by transformations when needed, allowing greater flexibility in handling raw data.
One significant advantage of ELT is the elimination of the need to formalize schemas upfront, which streamlines the process and accommodates evolving data structures.
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