Since MongoDB 5.0, thedropcommand and thedb.collection.drop()method will return an error if you attempt to drop a collection in the admin database or the config database from amongos. Connect to the config server instead and run the command to delete these collections. ...
port, andauthentication. There are other parameters, like-jused to restore collections in parallel,-cor–collectionis used for a specific collection, and-dor–dbis used to define a specific database. The list of options of the mongorestore parameter can be shown using help...
Set up a MongoDB Atlas cluster Now, let's get into setting up a MongoDB Atlas cluster, which we will use to store our embeddings. Step 1: Create an account To create a MongoDB Atlas cluster, first, you need to create a MongoDB Atlas account if you don't already have one. Visit ...
MongoDB Export Command to export all the collections of the database: mongodump -d<database_name>-o<directory_backup> Example: mongodump -d ngdeveloper-0D:\ngdeveloper\mongodb-exports\ MongoDB Import Command to import all the collections of the database: mongorestore -d<database_name><dir...
Check if a Collection Exists in MongoDB Using NodeJS To find if a collection exists, we first need to connect with the MongoDB server, and then we need to query like this: dbs.collection("Your_collection_name").find().toArray(function(err, res) {if ( res.length > 0 ){console.log...
// Fill out a literal array of collections you want to duplicate the records in. // Iterate over each collection using the forEach method on the array. // For each collection get (find) all the records and forEach on each of them. ...
MongoDB provides a robust query mechanism that makes it straightforward to define filtering criteria when retrieving documents. In this tutorial, you’ll learn how to query MongoDB collections using a different range of filters and conditions. You will also learn what cursors are and how to use ...
Modify the cleanupOrphaned.js script file and replace test with the database name of the orphaned document to be cleared. Run the following command to clear the orphaned documents of all collections in the specified database on the shard node: mongo --host ShardIP --port Primaryport --auth...
How to monitor self-managed MongoDB instances:Commands such asrs.status()for replica sets andsh.status()for sharded clusters provide a high level status of the cluster. Use MongoDB’s built-infree monitoringfeature to get information on Operation Execution Times, Memory Usage, CPU Usage, and ...
Get your Certification Core Concepts Around MongoDB I’ve been saying document databases over and over up to this point, but what actually are they? Here are the main concepts: Documents: data is stored in objects called documents. In simple terms, documents are similar to JSON key-value obj...