dropdb - remove a PostgreSQL database
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
dropdb accepts the following command-line arguments:
dbname Specifies the name of the database to be removed.
--echo Echo the commands that dropdb generates and sends to the server.
Issues a verification prompt before doing anything destructive.
dropdb also accepts the following command-line arguments for connection
Specifies the host name of the machine on which the server is
running. If the value begins with a slash, it is used as the
directory for the Unix domain socket.
Specifies the TCP port or local Unix domain socket file
extension on which the server is listening for connections.
User name to connect as.
Never issue a password prompt. If the server requires password
authentication and a password is not available by other means
such as a .pgpass file, the connection attempt will fail. This
option can be useful in batch jobs and scripts where no user is
present to enter a password.
Force dropdb to prompt for a password before connecting to a
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.
PGUSER Default connection parameters
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;
createdb(1), DROP DATABASE [drop_database(7)]