You can use
db.getSiblingDB() as an alternative to the
use <database> helper. This is particularly useful when writing scripts using the
mongo shell where the
use helper is not available. Consider the following sequence of operations:
This operation sets the
db object to point to the database named
users, and then returns a count of the collection named
active. You can create multiple
db objects, that refer to different databases, as in the following sequence of operations:
This operation creates two
db objects referring to different databases (i.e.
records) and then returns a count and an example document from one collection in that database (i.e.