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Showing posts with the label Mongodb Query

Query On Date For Posts Created The Last 24h

I have this schema with a date for the field 'created_at': var post = new mongoose.Schema({… Read more Query On Date For Posts Created The Last 24h

How Do I Conditionally Restart The Promise Chain From The Beginning?

I am trying to implement a simple raffling system where I do a GET /test which returns a random use… Read more How Do I Conditionally Restart The Promise Chain From The Beginning?

Express Mongodb Find() Based On _id Field

So In my express app, I am trying to find() based on my _id field. See my MongoDB record below. { … Read more Express Mongodb Find() Based On _id Field

Collect Distinct Field Names At Nested Level With Specific Condition

I have problem statement, in which i need all the field names at child level of 'config.first.… Read more Collect Distinct Field Names At Nested Level With Specific Condition

How To Update Subset Of A String In Mongodb?

I want to update the following subset of a string in monogdb Collection: Paper Field: URL Document… Read more How To Update Subset Of A String In Mongodb?

Mongodb: How To Rename A Field Using Regex

I have a field in my documents, that is named after its timestamp, like so: { _id: ObjectId(… Read more Mongodb: How To Rename A Field Using Regex

Mongodb Where Clause

I have mongoDB 'users' collection in JSON format and I want to return all the data having p… Read more Mongodb Where Clause

Mongodb Query To Remove Duplicate Documents From A Collection

I take data from a search box and then insert into MongoDB as a document using the regular insert q… Read more Mongodb Query To Remove Duplicate Documents From A Collection

How Can I Execute A Statement After A Loop Finishes In Javascript?

I'm querying a mongo database to retrieve the tiles for the display in rougelike game. This is … Read more How Can I Execute A Statement After A Loop Finishes In Javascript?

$filter Upto 3 Nested Level In Mongodb

I have a below collection [ { 'Array1': [ { 'Array2': [ … Read more $filter Upto 3 Nested Level In Mongodb

Mongo Aggregation Cursor & Counting

According to the mongodb node driver docs the aggregate function now returns a cursor (from 2.6). I… Read more Mongo Aggregation Cursor & Counting

Querying A Mongodb Based On Mongo Id In A Node.js App

I'm using a node.js and mongodb, and I'm trying to query the database based on the mongo ge… Read more Querying A Mongodb Based On Mongo Id In A Node.js App

Limit Number Of Values In A Field Using MongoDB

My collection has an array of values, but I'd like to retrieve only the last X. Example: db.col… Read more Limit Number Of Values In A Field Using MongoDB

How Can I Create My Mongodb Query Based On The Input From The User In Node.js?

Currently in my app I store different forum posts. Users can add new messages and create new posts.… Read more How Can I Create My Mongodb Query Based On The Input From The User In Node.js?

Mongoose - Find(): Object Inside Search Options Is Not Working

I have a mongoose Schema that looks like this: var mySchema = new mongoose.Schema({ ... metadat… Read more Mongoose - Find(): Object Inside Search Options Is Not Working

Calling Db.system.js Function In $where

As a basic example, I have this function saved: db.system.js.save({_id: 'sum', value: funct… Read more Calling Db.system.js Function In $where