Basic commands for MongoDB

Use command

MongoDB use database_name

Used to create a database. This command will create a new database, and if it does not exist, it will return the existing database.

Dropdatabase () method

MongoDB Db.dropdatabase ()

The command is used to delete an existing database. The basic syntax for the dropdatabase () command is as follows:

Db.dropdatabase ()
drop ()

Method

The MongoDB Db.collection.drop () is used to delete a collection from the database.

Insert () method

To insert data into the MongoDB collection, you need to use the MongoDB Insert () or Save () method.

Find () method

To query the collection data from the MongoDB, you need to use the MongoDB find () method.

Pretty () method

The results are shown in a format that can be used with the pretty () method.

Limit () method

To limit the records in MongoDB, you need to use the limit () method. The limit () method accepts a numeric parameter, which is the number of documents to display. Grammar:

The basic syntax for the limit () method is as follows

>db. Collection_name.find (). Limit (number)