dropdb

Removes a database.

Synopsis

1. dropdb [<connection-option> ...] [-e] [-i] <dbname>

3. dropdb -? | --help

5. dropdb -V | --version

Description

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

dropdb is a wrapper around the SQL command DROP DATABASE. See the Greenplum Database Reference Guide for information about 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.

-V | —version

Print the dropdb version and exit.

--if-exists

Do not throw an error if the database does not exist. A notice is issued in this case.

-? | —help

Show help about dropdb command line arguments, and exit.

Connection Options

-h host | —host=host

The host name of the machine on which the Greenplum 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 Greenplum 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.

--maintenance-db=dbname

Specifies the name of the database to connect to in order to drop the target database. If not specified, the postgres database will be used; if that does not exist (or if it is the name of the database being dropped), template1 will be used.

Examples

To destroy the database named demo using default connection parameters:

1. dropdb demo

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

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

See Also

createdb, DROP DATABASE