How does Extraction-Transformation-Loading (ETL) differ from Extract-Load-Transform (ELT) in terms of data extraction?
- Data is extracted from the target system back to the source system
- Data is extracted in real-time from the source system
- Data is loaded into the target system before transformation
- Data is transformed before loading into the target system
ETL involves extracting data, then transforming it, and finally loading it into the target system, whereas ELT involves extracting data first, then loading it into the target system, and finally transforming it.
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