I've been in the DBMS business for three decades and have never heard of this happening. In California it's a vanishingly rare case. What has happened is that e

I've been in the DBMS business for three decades and have never heard of this happening. In California it's a vanishingly rare case. What has happened is that every new DBMS company I know has benefited from the flow of engineers from legacy companies. This would have been impossible with non-competes. Happy to be proven wrong.