Sometimes, you need to persist complex objects in a database and/or for a long period of time. Under these circumstances, the key/value store acts more or less as the Map<K,V> class, wherein you need a key to obtain the values, but the key doesn’t need to be a string. It can be another type, and the value can be a simple string or a complex object.
Redis 1 or Memcached2 are examples of this type of database, which you can use with another module of Spring Boot, such as a cache mechanism.
The main difference ...
