dropdb [ option... ] dbname
dropdb destroys an existing PostgreSQL database. The user who executes this command must be a database superuser or the owner of the database.
dropdb is a wrapper around the SQL command DROP DATABASE [drop_database(7)]. There is no effective difference between dropping databases via this utility and via other methods for accessing the server.
dropdb accepts the following command-line arguments:
dropdb also accepts the following command-line arguments for connection parameters:
This option is never essential, since dropdb will automatically prompt for a password if the server demands password authentication. However, dropdb will waste a connection attempt finding out that the server wants a password. In some cases it is worth typing -W to avoid the extra connection attempt.
This utility, like most other PostgreSQL utilities, also uses the environment variables supported by libpq (see in the documentation).
In case of difficulty, see DROP DATABASE [drop_database(7)] and psql(1) for discussions of potential problems and error messages. The database server must be running at the targeted host. Also, any default connection settings and environment variables used by the libpq front-end library will apply.
To destroy the database demo on the default database server:
$ dropdb demo
To destroy the database demo using the server on host eden, port 5000, with verification and a peek at the underlying command:
$ dropdb -p 5000 -h eden -i -e demo Database "demo" will be permanently deleted. Are you sure? (y/n) y DROP DATABASE demo;