I can bet that open-source code SQL server like PostgreSQL is bomb-proof
and even in case of nuclear war world-wide,
the source code of PostgreSQL will be very safe at some point on the
planet and can easily be distributed and multiplied rapidly.
The reason being internet is nuclear-bomb proof storage center and
PostgreSQL source code is stored on internet..
This is a point why large enterprises should consider PostgreSQL.
Internet SQL server like PostgreSQL will gain rapid momentum
world-wide....