Every person in the database has the same attribute, which is the department. I want to get all the departments that appear in the database (no duplication). For example, there are 4 people in the database. No. 1 is the marketing department and No. 2 is sales. Department No. 3 is the office and No. 4 is the marketing department
Then the array I need is ['Marketing Department', 'Sales Department', 'Office']. How can I get this array? I use node.js mongose mongodb in the background.
给我你的怀抱2017-05-18 10:50:51
For reference:
db.collection.distinct()
https://docs.mongodb.com/manu...
I’m thinking that it might be more efficient if I check the official documentation myself: http://docs.mongodb.org/manual/.
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