Currently, I have these MongoDB documents: { "_id" : ObjectId("someId1"), "employeeId": 1, "vehicleName": "accord" }, { "_id" : ObjectId("someId12"), "employeeId": 1, "vehicleName": "camry" }, { "_id" : ObjectId("someId3"), "employeeId": 2, "vehicleName": "civic" }, { "_id" : ObjectId("someId4"), "employeeId": 2, "motorcycleName":…
I have this schema:{ key: [] }. I want to convert it to { key: { foo: number } }. This is the query I came up with: db.collection.update({}, [ { "$set": { key: { foo: 43 } } }…
Does anyone know how to add an array element to a mongodb array and set a "virtual" order to the size of the array, all in an atomic operation? So, something like: db.users.updateOne( { _id: 1}, { $addToSet: { images:…
I have one collection that the structure of the record look like this, { _id: ObjectId('66a544dc3a8dff9aaaf65343'), user_type: "USER", status: CREATE } The explanation of each field: _id : ID generate by MongoDB user_type : the record's user type . Can…
Here I'm adding the Mongo playground URL how my schema structure look like Now I want 3 unique array elements which are mostPurchased, latestRewards and suggestedRewards. So I'm trying to achieve by using $facet { $facet: { mostPurchased: [ {…
I was looking for a way to convert a positive integer into a binary array inside a mongoDB aggregation pipeline. There is $bit operation which can't be used inside an aggregation pipeline. This question is regarding mongoDB version 6.0 and…
I needed to run a quick and (I thought) trivial query to update some incorrect data. I'm trying to update the very first entry of an array in a document. Note: My posted queries run against db instead of a…
`I am trying to write an aggregator query for the complex DB document below, ideally i am looking for creating multiple streams from the given activities set, identifying the parent child hierarchy and recursively processing the input document. Title: Aggregator…
I have a data like: [ { "grp": "A", "seq": 1, "score": 1, x: 0 }, { "grp": "A", "seq": 1, "score": 2, x: 0 }, { "grp": "A", "seq": 1, "score": 3, x: 0 }, { "grp": "A", "seq":…
I'm using MongoDB and I have a document where I want to increment a count field. However, I need to ensure that this count does not go below zero. For example, if inc is -2 and the current count is…