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droplang(1) [centos man page]

DROPLANG(1)						  PostgreSQL 9.2.7 Documentation					       DROPLANG(1)

NAME
droplang - remove a PostgreSQL procedural language SYNOPSIS
droplang [connection-option...] langname [dbname] droplang [connection-option...] --list | -l [dbname] DESCRIPTION
droplang is a utility for removing an existing procedural language from a PostgreSQL database. droplang is just a wrapper around the DROP EXTENSION (DROP_EXTENSION(7)) SQL command. Caution droplang is deprecated and may be removed in a future PostgreSQL release. Direct use of the DROP EXTENSION command is recommended instead. OPTIONS
droplang accepts the following command line arguments: langname Specifies the name of the procedural language to be removed. (This name is lower-cased.) [-d] dbname, [--dbname=]dbname Specifies from which database the language should be removed. The default is to use the database with the same name as the current system user. -e, --echo Display SQL commands as they are executed. -l, --list Show a list of already installed languages in the target database. -V, --version Print the droplang version and exit. -?, --help Show help about droplang command line arguments, and exit. droplang also accepts the following command line arguments for connection parameters: -h host, --host=host Specifies the host name of the machine on which the server is running. If host begins with a slash, it is used as the directory for the Unix domain socket. -p port, --port=port Specifies the Internet TCP/IP port or local Unix domain socket file extension on which the server is listening for connections. -U username, --username=username User name to connect as. -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 droplang to prompt for a password before connecting to a database. This option is never essential, since droplang will automatically prompt for a password if the server demands password authentication. However, droplang 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. ENVIRONMENT
PGDATABASE, PGHOST, PGPORT, PGUSER Default connection parameters This utility, like most other PostgreSQL utilities, also uses the environment variables supported by libpq (see Section 31.14, "Environment Variables", in the documentation). DIAGNOSTICS
Most error messages are self-explanatory. If not, run droplang with the --echo option and see under the respective SQL command for details. Also, any default connection settings and environment variables used by the libpq front-end library will apply. NOTES
Use createlang(1) to add a language. EXAMPLES
To remove the language pltcl: $ droplang pltcl dbname SEE ALSO
createlang(1), DROP EXTENSION (DROP_EXTENSION(7)), DROP LANGUAGE (DROP_LANGUAGE(7)) PostgreSQL 9.2.7 2014-02-17 DROPLANG(1)

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DROPDB(1)						  PostgreSQL 9.2.7 Documentation						 DROPDB(1)

NAME
dropdb - remove a PostgreSQL database SYNOPSIS
dropdb [connection-option...] [option...] dbname DESCRIPTION
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. OPTIONS
dropdb accepts the following command-line arguments: dbname Specifies 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. dropdb also accepts the following command-line arguments for connection parameters: -h host, --host=host 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. -p port, --port=port Specifies the TCP port or local Unix domain socket file extension on which the server is listening for connections. -U username, --username=username User name to connect as. -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 dropdb to prompt for a password before connecting to a database. 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. --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 is the database being dropped), template1 will be used. ENVIRONMENT
PGHOST, PGPORT, PGUSER Default connection parameters This utility, like most other PostgreSQL utilities, also uses the environment variables supported by libpq (see Section 31.14, "Environment Variables", in the documentation). DIAGNOSTICS
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. EXAMPLES
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; SEE ALSO
createdb(1), DROP DATABASE (DROP_DATABASE(7)) PostgreSQL 9.2.7 2014-02-17 DROPDB(1)
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