const { MongoClient } = require("mongodb");
const client = new MongoClient("mongodb://localhost:27017");
async function connectToMongo() {
try {
await client.connect();
console.log("Connected to MongoDB");
} catch (err) {
console.error(err);
}
}
async function updateMany() {
try {
await connectToMongo();
const db = client.db("test");
const collection = db.collection("student");
const query = { roll: 23 };
const update = { $set: { roll: 24 } };
const result = await collection.updateMany(query, update);
console.log("Documents updated: " + result.modifiedCount);
client.close();
} catch (err) {
console.error(err);
}
}
updateMany();