WebStep 1: Sort and limit and $out documents in temporary collection. db.my_coll.aggregate([ { $sort: { _id: - 1} }, { $limit: 10000 }, { $out: 'my_coll_temp' } ]) Step 2: Remove (Not dropping … WebDec 3, 2024 · The MongoDB shell provides the following method to delete the documents from a collection. We will the following method to delete a single document db.collection.deleteOne () We will the following method to delete multiple documents db.collection.deleteMany () Also, check: MongoDB find by ID How to delete the …
How to Select Collection and delete many documents in the
WebApr 13, 2024 · How to Select Collection and delete many documents in the collection using Java? MongoDB with Java Ram N Java 29.5K subscribers Subscribe 1 No views 1 minute ago #MongoDB … WebCascade Delete with MongoDB DevSprout 24.6K subscribers Subscribe 195 10K views 4 years ago Learn how to cascade delete all associated (referenced) documents from a parent document with... hub of memphis nightlife
Cascade Delete with MongoDB - YouTube
WebMay 12, 2024 · Model.remove():- As the name suggests, the remove() function in Mongoose is used to remove the documents from the database based upon the provided conditions. Note:- remove() function is now deprecated for mongoose v5.5.3 and above. We use deleteOne(), deleteMany(), etc., that we will see in the article next. WebExample 1: mongodb delete all documents db. collection. delete_many ({}); Example 2: mongodb delete all documents # To remove all documents in a collection, call the remove method with an empty query # document {}. The following operation deletes all documents from the bios collection: db. bios. remove ({}) WebJul 30, 2024 · MongoDB Database Big Data Analytics You can use $unset operator to remove a field completely from a MongoDb document. The syntax is as follows: db.yourCollectionName.update( {}, {$unset: {yourFieldName:1}}, false, true); To understand the above syntax, let us create a collection with some documents. hub of hubs