Mongodb
MongoDB is a scalable, high-performance, open source, document-oriented NoSQL database. It supports a large number of languages and application development platforms. Questions about server administration can be asked on http://dba.stackexchange.com.
49
votes
6
answers
2.5K
views
Stop Mongoose from creating _id property for sub-document array items
If you have subdocument arrays, Mongoose automatically creates ids for each one. Example: { _id: "mainId"
54
votes
22
answers
607
views
Avoid "current URL string parser is deprecated" warning by setting useNewUrlParser to true
I have a database wrapper class that establishes a connection to some MongoDB instance: async connect(connect
55
votes
30
answers
982
views
How to paginate with Mongoose in Node.js?
I am writing a webapp with Node.js and mongoose. How can I paginate the results I get from a .find() call? I w
62
votes
22
answers
3K
views
How to select a single field for all documents in a MongoDB collection?
In my MongoDB, I have a student collection with 10 records having fields name and roll. One record of this col
57
votes
7
answers
3.1K
views
How to print out more than 20 items (documents) in MongoDB's shell?
db.foo.find().limit(300) won't do it. It still prints out only 20 documents. db.foo.find().toArray() d
62
votes
30
answers
3K
views
E11000 duplicate key error index in mongodb mongoose
Following is my user schema in user.js model - var userSchema = new mongoose.Schema({ local: { na
51
votes
8
answers
1.5K
views
mongodb/mongoose findMany - find all documents with IDs listed in array
I have an array of _ids and I want to get all docs accordingly, what's the best way to do it ? Something
47
votes
8
answers
2.7K
views
Ways to implement data versioning in MongoDB
Can you share your thoughts how would you implement data versioning in MongoDB. (I've asked similar quest
59
votes
12
answers
815
views
How do I manage MongoDB connections in a Node.js web application?
I'm using the node-mongodb-native driver with MongoDB to write a website. I have some questions about ho
57
votes
12
answers
3K
views
How do I search for an object by its ObjectId in the mongo console?
I've found this question answered for C# and Perl, but not in the native interface. I thought this would
51
votes
11
answers
423
views
Mongoose: findOneAndUpdate doesn't return updated document
Below is my code var mongoose = require('mongoose'); mongoose.connect('mongodb://localhost/tes
54
votes
22
answers
934
views
Get names of all keys in the collection
I'd like to get the names of all the keys in a MongoDB collection. For example, from this: db.things.in
57
votes
24
answers
2.8K
views
MongoDB: Is it possible to make a case-insensitive query?
Example: > db.stuff.save({"foo":"bar"}); > db.stuff.find({"foo":"bar"}).count(); 1 > db.stuff.find(
66
votes
8
answers
775
views
MySQL vs MongoDB 1000 reads
I have been very excited about MongoDb and have been testing it lately. I had a table called posts in MySQL wi
54
votes
28
answers
997
views
Random record from MongoDB
I am looking to get a random record from a huge collection (100 million records). What is the fastest and most
57
votes
7
answers
448
views
What is the "__v" field in Mongoose
I'm using Mongoose version 3 with MongoDB version 2.2. I've noticed a __v field has started appearin
59
votes
30
answers
1.8K
views
How to export all collections in MongoDB?
I want to export all collections in MongoDB by the command: mongoexport -d dbname -o Mongo.json The resul
51
votes
15
answers
1.5K
views
How to remove a field completely from a MongoDB document?
{ name: 'book', tags: { words: ['abc','123'], lat: 33,
61
votes
6
answers
1.8K
views
Add new field to every document in a MongoDB collection
How can I add a new field to every document in an existent collection? I know how to update an existing docum
56
votes
18
answers
1.2K
views
How to secure MongoDB with username and password
I want to set up user name & password authentication for my MongoDB instance, so that any remote access wi
