MongoDB Update Operators

There are many update operators that can be used during document updates.

Fields

The following operators can be used to update fields:

$currentDate: Sets the field value to the current date
$inc: Increments the field value
$rename: Renames the field
$set: Sets the value of a field
$unset: Removes the field from the document

Array

The following operators assist with updating arrays.

$addToSet: Adds distinct elements to an array
$pop: Removes the first or last element of an array
$pull: Removes all elements from an array that match the query
$push: Adds an element to an array

MongoDB Update Operators – FAQs

Quick answers about learning MongoDB Update Operators in MongoDB.

What does this MongoDB Update Operators note cover?

This free note from CodingNow 2.0 explains MongoDB Update Operators in MongoDB — concept, syntax and worked code examples you can copy, run and revise before interviews.

Is this MongoDB Update Operators tutorial free?

Yes. Every MongoDB topic on CodingNow 2.0, including MongoDB Update Operators, is 100% free with no signup required.

How long does it take to learn MongoDB Update Operators?

With focused practice, most students grasp MongoDB Update Operators in 1–3 days from these notes; pairing it with CodingNow 2.0's mentor-led course takes you to job-ready depth faster.

Where can I practise MongoDB Update Operators after reading?

Use the code examples in this note, then ask doubts for free on the CodingNow 2.0 Community (/community) — expert instructors answer within 24 hours.

MongoDB Update Operators