Most NoSQL datbabases have discarded what gave the standard SQL database its place 30 years ago. This includes "ACID", first developed in the 1970s, which is a set of properties that guarantees database transactions are processed reliably. Most NoSQL providers have discarded ACID and, as a result, have started to have longer-term problems, such as data consistency. The real effect is ease of development. It’s harder to build on top of a database without strong consistency guarantees.