Since MongoDB 5.0, the drop command and the db.collection.drop() method will return an error if you attempt to drop a collection in the admin database or the config database from a mongos. Connect to the config
mongo localhost/db <<EOF db.dropDatabase() EOF MongoDB shell version: 2.2.2 connecting to: localhost/db { "dropped" : "db", "ok" : 1 } bye 1. 2. 3. 4. 5. 6. 7. command for Database drop is : first select the database which you want to delete use < database name > d...
For restoring, use mongorestore. Let’s see how they work. Step 2 — Using mongodump to Back Up a MongoDB Database Let’s cover backing up your MongoDB database first. An essential argument to mongodump is --db, which specifies the name of the database you want to...
When your application is struggling or underperforming, you may want to investigate the database layer as a potential bottleneck. The application establishes connections and performs operations against the database, so pay close attention to its behavior. MongoDB provides various metrics and mechan...
Starting in MongoDB 4.0.2, dropping a collection deletes its associated zone/tag ranges. If you try to drop a collection in the admin database or the config database from amongossince MongoDB 5.0, the drop command and thedb.collection.drop()function will produce an error. Instead, connect...
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The simplest solution to this problem is to run the exports and backups during the night or during non-peak hours. Fourth, information consistency could be problematic if you have a busy MongoDB server where the information changes during the database export or backup process....
npm install mongodb @faker-js/faker Now that you have the project setup and all the packages in, it’s time to start writing tests. Data integrity with CRUD tests For this tutorial, you will be running simple CRUD (Create-Read-Update-Delete) tests to validate the data integrity in your...
At the heart of MongoDB’s native replication system is theoplog (operation log), a capped collection that logs every write operation—insert, update, and delete—performed on your MongoDB cluster. By tailing the oplog, you can stream CDC events from the source database to target systems usi...
Thus, the book “The Hobbit” may exist as a book type in the index named bookstore. Зарамками Agile With the basic REST API syntax out of the way, we can explore how to perform specific actions like deleting data. Delete a single document Taking our basic syntax as ...