MongoDB explain() Example

Date: 2018-03-07

This tutorial explains MongoDB's explain() method, which provides query plan information for optimizing database performance. The method, used with db.collection.find().explain(), returns a document detailing the query's execution. Different verbosity modes, like queryPlanner (default) and executionStats, offer varying levels of detail. The tutorial demonstrates creating a sample database and collection, then using explain() with both modes to illustrate the returned information, helping developers identify and improve slow queries.

Read more: https://examples.javacodegeeks.com/software-development/mongodb/mongodb-explain-example/