Q is not just a query language or a database. It's an array programming language with database capability. You can build an entire framework with just Q, from real-time streaming, to in memory database to on disk database. You can build all APIs and business logic around it. Because it's vector oriented and in memory it's faster than pretty much everything else, no loops required. I have seen a team of 15 KDB developers build what would require an entire etrading department of 200+ developers
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