Question

I need to pull multiple random documents from a collection in MongoDB. I don’t want to ad a new key to my documents or use a map reduce. Any suggestions?

Answer 1

You can generate random skip in range from 0 up to collection items count and then load documents:

db.items.find().skip(randonNumberHere).limit(1);

But, such approach because less and less efficient for a big collections, because each time when you use skip mongodb iterate from first to skip item.