mongodb Archives - Page 7 of 11

Ways to implement data versioning in MongoDB

Can you share your thoughts how would you implement data versioning in MongoDB. (I’ve asked similar question regarding Cassandra. If you have any ...

May 14, 2022
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How do I remove documents using Node.js Mongoose?

FBFriendModel.find({ id: 333 }, function (err, docs) { docs.remove(); //Remove all the documents that match! }); The above doesn’t seem to work. The ...

May 13, 2022
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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 how to manage connections: Is it enough ...

May 12, 2022
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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.insert( { type :...

May 11, 2022
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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 with about ...

May 11, 2022
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“continue” in cursor.forEach()

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 ...

May 10, 2022
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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 work: db.theColl.find( { _id: ...

May 10, 2022
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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({"foo":"BAR"}).count(); 0 25 Answers 25

May 10, 2022
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Mongoose: findOneAndUpdate doesn’t return updated document

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: ...

May 9, 2022
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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 appearing in my MongoDB documents. Is it ...

May 8, 2022
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