ETL / ELTExplainerETL versus ELT: what changed and when each one fits
Both move data from where it is made to where it is analysed. The difference is where the transformation happens, and that decides cost, flexibility and who can change it.
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What something is, why it works the way it does, and when it matters.
ETL / ELTExplainerBoth move data from where it is made to where it is analysed. The difference is where the transformation happens, and that decides cost, flexibility and who can change it.