MongoDB deletes the database

MongoDB deletes the database

Grammar

MongoDB deletes the database in the following syntax format:

db.dropDatabase()

Delete the current database, which defaults to test, and you can use the db command to view the current database name.

Instance

The following example we deleted the database youj.

First, look at all the databases:

> show dbs
local   0.078GB
youj  0.078GB
test    0.078GB

Next we switch to database youj:

> use youj
switched to db youj
> 

To execute a delete command:

> db.dropDatabase()
{ "dropped" : "youj", "ok" : 1 }

Finally, let's go through show dbs to command whether the database was deleted successfully:

> show dbs
local  0.078GB
test   0.078GB
> 

Delete the collection

The collection deletion syntax format is as follows:

db.collection.drop()