MongoDB -Access different databases and Collections

You can use db.getSiblingDB() method to access another database without switching the database.

To List Collections of PP database and query collection named “restaurants”

db.getSiblingDB('PP').getCollectionNames()

The PP Database has three collections

  1. first
  2. restaurants
  3. second

Accessing PP database temporarily from Test database

screen1

To access ‘restaurants’ collection of PP database

db.getSiblingDB('PP').restaurants.find().pretty();
OR
db.getSiblingDB('PP').restaurants.findOne();

screen2

Output:-

screen4

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About Prashanth Jayaram

I’m a Database technologist having 11+ years of rich, hands-on experience on Database technologies. I am Microsoft Certified Professional and backed with a Degree in Master of Computer Application. My expertise lies in T-SQL programming, Replication and PowerShell You can connect me via https://social.technet.microsoft.com/profile/prashanth jayaram/ http://www.sqlshack.com/author/prashanth/ https://www.tumblr.com/blog/prashantjayaram http://www.sqlservercentral.com/blogs/powersql-by-prashanth-jayaram/ http://www.toadworld.com/members/prashanthjayaram/ My Articles are published in following sites http://www.ssas-info.com/analysis-services-articles/ http://db-pub.com/ http://www.sswug.org/sswugresearch/community/
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