Returns an object representing the specified database.
MongoDatabase getDatabase (
The returned object allows to access the database entity (which contains a set of collections). There are two main use cases:
1. Accessing collections using a relative path
2. Performing service commands on the database itself
Note that there is no performance gain in accessing collections via a relative path compared to getCollection and an absolute path.
MongoDatabase instance representing requested database
auto db = client
.getDatabase("test"); auto coll = db["collection"];