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The key to efficient data processing is handling rows of data in batches, rather than one row at a time. Older, file-oriented databases utilized the latter method, to their detriment. When SQL relational databases came on the scene, they provided a query grammar that was set-based, declarative and much more efficient. That was an improvement that’s stuck with us.
But as evolved as we are at the query level, when we go all the way down to central processing units
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