mobileNavlogo
headerlogo

How to delete document in MongoDB

20 September, 2018

Ratings

Related Blogs

Remove Documents

In MongoDB, the db.collection.remove() method removes documents from a collection. You can remove all documents from a collection, remove all documents that match a condition, or limit the operation to remove just a single document.

This tutorial provides examples of remove operations using the db.collection.remove() method in the mongo shell.

Remove All Documents

To remove all documents from a collection, pass an empty query document {} to the remove() method. The remove() method does not remove the indexes.

The following example removes all documents from the inventory collection:

Screenshot_44

Remove Documents that Match a Condition

To remove the documents that match a deletion criteria, call the remove()method with the <query>parameter.

Aspired to become an Mongo DB Training?
Explore the post to discover the know-hows on Mongo DB.

The following example removes all documents from the inventory collection where the type field equalsfood:

Screenshot_45

For large deletion operations, it may be more efficient to copy the documents that you want to keep to a new collection and then use drop()on the original collection.

Remove a Single Document that Matches a Condition

To remove a single document, call the remove() method with the justOne parameter set to true or 1.

The following example removes one document from the inventory collection where the type field equalsfood:

Screenshot_47

To delete a single document sorted by some specified order, use the find and modify method.

For indepth understanding click on

About Author
Authorlogo
Name

TekSlate

Author Bio

TekSlate is the best online training provider in delivering world-class IT skills to individuals and corporates from all parts of the globe. We are proven experts in accumulating every need of an IT skills upgrade aspirant and have delivered excellent services. We aim to bring you all the essentials to learn and master new technologies in the market with our articles, blogs, and videos. Build your career success with us, enhancing most in-demand skills .