I have a MongoDb database with around 1000 records, I had the timestamp option set to false and none of them has the createdAt and updatedAt attributes. Now i've set the timestamp to true and I want to update all…
I have 2 collections, a parent and a child collection. The parent knows which children are linked. The parent: { _id: ObejctId; linkedChildren: ObjectId[] } I now wanna find the most efficient way, to find the children which are not…
I am using this code in MongoDB aggregation: { date: ISODate() } It's generating current date in ISO format for every document. How can I generate random ISO date for every document?
Do anybody manage to start existed relicaset after MongoDB minor version upgrade from official MongoDB stable repo? On previous versions 5.0.14/4.4.18 everything works perfect. {"t":{"$date":"2023-02-24T12:22:59.994+01:00"},"s":"I", "c":"-", "id":4333218, "ctx":"LogicalSessionCacheReap","msg":"Rescheduling the next replica set monitoring request","attr":{"replicaSet":"MainRepSet","host":"10.1.0.4:27017","delayMillis":0}} {"t":{"$date":"2023-02-24T12:22:59.996+01:00"},"s":"I", "c":"REPL", "id":21783, "ctx":"BackgroundSync","msg":"Waiting for pings…
i am running express.js inside electron and i am trying to connect mongodb composs to expressjs when i start my express.js using electron i am getting error in mongodb i have created the db in mongodb composs here is the…
I have written a express index.js to simple crud operation in mongodb. the item is the params I can console.log as mongodb Id however, ObjectId buildin function giving me a an class constructor error that it cannot inboked without 'new'.…
For this document: { "_id" : 3, "name" : " Shyam Lingam " } Expected: while retrieving _id = 3 then result should come like below: { "_id" : 3, "name" : "Shyam Lingam" } I tried this: db.collection.find({_id:3},{name:{$trim:{input:"$name"}}}) {…
I'm trying to populate a double array object but in an aggregate so I am utilizing the $lookup function. The collection looks something like this: { foo: [ { bar: [ { _id: ObjectId('63f508eedd2962118c37ea36') } ] } ] } My…
Can you help me with a situation... I Have this Json but I would like to format the field trackingID like "TR000000012345BR". How can I pad a trackingId with letters and zeros on the left and letter on the rigth…
my app.js file has code : const connectDB = require("./db/connect"); require("dotenv").config() const app = express(); const url = process.env.MONGO_URI; const port = 8080; // listen to server const start =async () =>{ try { await connectDB(url); app.listen(port, () => {…