Saying a feature of database that validates the data inside a database is dangerous is very much like saying seatbelts are dangerous because you can drawn. Anyt

Saying a feature of database that validates the data inside a database is dangerous is very much like saying seatbelts are dangerous because you can drawn. Anything can be misused, but there is a clear use case, because an ACID database provides a whole transactional, reliable and coherent application that can enforce rules no other layer in the system can, unless it reimplements the entire DB with sql validation and type checking.