All I'm saying is that there are viable alternatives. Oracle and SQL Server being successful doesn't really force anyone into using either of those things. Si

All I'm saying is that there are viable alternatives. Oracle and SQL Server being successful doesn't really force anyone into using either of those things. Similarly, sure, .NET and Java are popular enough, but they have alternative runtimes available (remember when Oracle sued Google over that). To me, I don't think the industry landscape changes meaningfully if these tools were to become unavailable.