MongoDB Field Update Operators Tutorial

Date: 2018-04-16

This tutorial explains MongoDB's field update operators: $inc (increments/decrements a field value), $rename (renames a field), $set (sets or adds a field), $setOnInsert (sets a field only during an upsert), and $unset (deletes a field). Each operator's syntax and usage are illustrated with examples, demonstrating how to update single or multiple documents and handle cases where fields don't exist. The multi: true option is highlighted for updating multiple matching documents.

Read more: https://examples.javacodegeeks.com/software-development/mongodb/mongodb-field-update-operators-tutorial/