Can you share your thoughts how would you implement data versioning in MongoDB. (I’ve asked similar question regarding Cassandra. If you have any thoughts which db is better for...
FBFriendModel.find({ id: 333 }, function (err, docs) { docs.remove(); //Remove all the documents that match! }); The above doesn’t seem to work. The records are still there. Can someone...
I’m using the node-mongodb-native driver with MongoDB to write a website. I have some questions about how to manage connections: Is it enough using only one MongoDB connection for...
I’d like to get the names of all the keys in a MongoDB collection. For example, from this: db.things.insert( { type : ['dog', 'cat'] } ); db.things.insert( { egg...
I have been very excited about MongoDb and have been testing it lately. I had a table called posts in MySQL with about 20 million records indexed only on...
I’m building an app using meteor.js and MongoDB and I have a question about cursor.forEach(). I want to check some conditions in the beginning of each forEach iteration and...
I’ve found this question answered for C# and Perl, but not in the native interface. I thought this would work: db.theColl.find( { _id: ObjectId("4ecbe7f9e8c1c9092c000027") } ) The query returned...
Example: > db.stuff.save({"foo":"bar"}); > db.stuff.find({"foo":"bar"}).count(); 1 > db.stuff.find({"foo":"BAR"}).count(); 0 25 Answers 25
Below is my code var mongoose = require('mongoose'); mongoose.connect('mongodb://localhost/test'); var Cat = mongoose.model('Cat', { name: String, age: {type: Number, default: 20}, create: {type: Date, default: Date.now} }); Cat.findOneAndUpdate({age: 17},...
I’m using Mongoose version 3 with MongoDB version 2.2. I’ve noticed a __v field has started appearing in my MongoDB documents. Is it something to do with versioning? How...