runCommand() ignores any global read preferences added through the connection string or by using the Mongo.setReadPref() method. To specify the desired read ...

Read operations to a replica set. Default read preference routes the read to the primary. click to enlarge. By default, an application directs its read ...

maxStalenessSeconds · Read Preference Tag Set Lists · Hedged Read Option

Note. For details on a specific method, including syntax and examples, click on the link to the method's reference page.

DBRefs allow you to more easily reference documents stored in multiple collections or databases. To resolve DBRefs, your application must perform additional ...

Describes the collections that MongoDB reserves for internal use. mongo: Documentation of JavaScript methods and helpers in the legacy mongo shell. Tip. See ...

Replication Reference · Sharding Reference · Security Reference

MongoDB is a document database designed for ease of application development and scaling. You can run MongoDB in the following environments:.

Install MongoDB · MongoDB Atlas · MongoDB CRUD Operations · Introduction

This page documents a mongosh method. This is not the documentation for database commands or language-specific drivers, such as Node.js.

findOne() · db.collection.findAndModify() · findOneAndDelete · findOneAndReplace

Starting in MongoDB 5.0, update operators process document fields with string-based names in lexicographic order. Fields with numeric names are processed in ...

Because MongoDB creates a collection implicitly when the collection is first referenced in a command, this method is used primarily for creating new collections ...