I have multiple databases In MongoDB that each of them has its collections such as:
Users Database has these collections:
1. usersInfo 2.usersReq
Licenses Database has these collections:
1. licenseInfo 2.licenseHistories
one of the basically Qry s for me is:
How can I use Aggregation ben multiple Databases without populate or after/befor populate?
Do you have any idea to do this?