JavaMadeSoEasy.com (JMSE): How to Delete all documents from collection in MongoDB

Contents of page >

1) Before deleting all documents from collection let’s create and query collection in MongoDB
2) How to Delete all documents (records) from collection in MongoDB>

1) Before deleting all documents from collection let’s create and query collection in MongoDB

Let's create collection and insert documents in it before delete >

> db.employee.insert({id : 1, firstName:"ankit"})

> db.employee.insert({id : 2, firstName:"sam"})

First line above will create table (or collection) (if table already exists it will insert documents in it).

Let's query/see what is there in collection before deleting all documents >

> db.employee.find();

{ "_id" : ObjectId("584ebed11127dea5ece72742"), "id" : 1, "firstName" : "ankit" }

{ "_id" : ObjectId("584ebee21127dea5ece72743"), "id" : 2, "firstName" : "sam" }

2) How to Delete all documents (records) from collection in MongoDB>

Here we delete all documents from collection employee

db.employee.remove({});

Let's query/see what is there in collection after deleting all documents >

> db.employee.find();

No, document was found.

SUMMARY>

So in this mongoDB tutorial we learned how to Delete all documents from collection in mongoDB.

Delete all documents from employee collection in MongoDB>

> db.employee.remove({});

Having any doubt? or you liked the tutorial! Please comment in below section.

Please express your love by liking JavaMadeSoEasy.com (JMSE) on facebook, following on google+ or Twitter.

JavaMadeSoEasy.com (JMSE)