dropdb

Removes a database.

Synopsis

dropdb [connection_option ...] [-e] [-i] dbname

dropdb --help 

dropdb --version

Description

dropdb destroys an existing database. The user who executes this command must be a superuser or the owner of the database being dropped.

dropdb is a wrapper around the SQL command DROP DATABASE.

Options

dbname
The name of the database to be removed.

-e | –echo
Echo the commands that dropdb generates and sends to the server.

-i | –interactive
Issues a verification prompt before doing anything destructive.

Connection Options

-h host | –host host
The host name of the machine on which the HAWQ master database server is running. If not specified, reads from the environment variable PGHOST or defaults to localhost.

-p port | –port port
The TCP port on which the HAWQ master database server is listening for connections. If not specified, reads from the environment variable PGPORT or defaults to 5432.

-U username | –username username
The database role name to connect as. If not specified, reads from the environment variable PGUSER or defaults to the current system role name.

-w | –no-password
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.

-W | –password
Force a password prompt.

Examples

To destroy the database named demo using default connection parameters:

dropdb demo

To destroy the database named demo using connection options, with verification, and a peek at the underlying command:

dropdb -p 54321 -h masterhost -i -e demo
Database "demo" will be permanently deleted.
Are you sure? (y/n) y
DROP DATABASE "demo"
DROP DATABASE