MongoDB - Java

MongoDB - PHP

Quiz

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

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

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.

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>

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