Big data integration activities can happen outside the database in an extract, transform, load (ETL) environment, or inside the database in ELT: http://www.iri.com/blog/data-transformation2/etl-vs-elt-we-posit-you-judge/ One example of an ELT operation would be Informatica’s Pushdown Optimization option, in which users transform data in a relational database like Oracle, or in Teradata. According to Informatica, this approach “allows the […]
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