db.dropDatabase() method is used to drop the database.
Note:- When you drop the database then all collections and documents will be deleted off from this database.
Syntax:-
use databaseName
> db.dropDatabase()
Example:- Firstly check all database
show dbs
Output:-
employee_management
school_management
school_management
Now delete the database
use employee_management
> db.dropDatabase()
Now check the database
show dbs
Output:-
school_management
Drop Database – Interview Questions
Q 1: How do you delete a database in MongoDB?
Ans: Use db.dropDatabase().
Q 2: What does dropDatabase() return?
Ans: It returns an object showing success status.
Q 3: Do you need to select the database before dropping?
Ans: Yes, you must select the database using use.
Q 4: Can dropped databases be recovered?
Ans: No, unless backup is available.
Q 5: Is dropping database permanent?
Ans: Yes, it permanently deletes all data.