FACEBOOK’S GIANT DATABASE. “Today Facebook said it’s releasing software called “Presto” as a free and open source project. Presto allows people to ask questions (in geek speak called “queries”) of huge databases and get the answers back immediately, not hours or days later). “We have one of the largest data warehouses in the world, storing more than 300 petabytes,” allowing rapid answers. (Nov 6, 2013). ”
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