mongodb nested query

Question

this is the structure of my table

[
 "_id" : 
 "rating" : ,
 "user_id" :
 "review_id" : 
 "user_url" : 
 "content" : ,
 "review_date" : 
 "bus_url" : 
 "type" : ,
 "categories" : [

 ]

How would I count the number of user_ids who occur more than once. How would I do this?

Igor Chubin · Accepted Answer · 2013-03-24 09:19:28Z

1

You need to use $group operator, more on it:

http://docs.mongodb.org/manual/reference/aggregation/group/

answered Mar 24, 2013 at 9:19

Igor Chubin

65.1k14 gold badges132 silver badges148 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

mongodb nested query

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related