MongoDB - Drop Database

In this chapter, we will see how to drop a database using MongoDB command.

The dropDatabase() Method

MongoDB db.dropDatabase() command is used to drop a existing database.

Syntax

Basic syntax of dropDatabase() command is as follows −

db.dropDatabase()

This will delete the selected database. If you have not selected any database, then it will delete default 'test' database.

Example - Checking and Deleting a Database

First, check the list of available databases by using the command, show dbs.

test>show dbs
admin    40.00 KiB
config  108.00 KiB
local    40.00 KiB
mydb     40.00 KiB
>

If you want to delete new database <mydb>, then dropDatabase() command would be as follows −

test>use mydb
switched to db mydb
mydb>db.dropDatabase()
{ ok: 1, dropped: 'mydb' }
>

Now check list of databases.

mydb> use test
switched to db test
test> show dbs
admin    40.00 KiB
config  108.00 KiB
local    40.00 KiB
test>