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I understand that you can limit the items in a subcollection array using $elemMatch as a projection… Read more Is It Possible To Use Query Projection On The Same Collection That Has A $elemmatch Projection?

I have a database in MongoDB like this {'productId' : 1, 'isVariant': 1, 'varia… Read more How To Return The Variant Values Of Each Product If That Product Is A Variant?

I am using MongoDB aggregation in meteor. I got duplicated data when subscribe multiple times. (The… Read more Got Duplicated Data When Subscribe Multiple Times

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

For the following dataset example: lists { _id: 1, included_lists: [ 2 ], items: [ 'i1' ]} … Read more Mongodb - Unwinding Nested Subdocuments

Let's say this is my MongoDB schema: var shopSchema = new mongoose.Schema({ nameSho… Read more How To Get Data From Mongodb To Simple Array Using Node.js And Mongoose?

I want to find all key names from a collection that partially match a certain string. The closest I… Read more Query And Filter Key Names Instead Of Values In MongoDB

I understand that you can limit the items in a subcollection array using $elemMatch as a projection… Read more Is It Possible To Use Query Projection On The Same Collection That Has A $elemMatch Projection?