createdb(1)

NAME

   createdb - create a new PostgreSQL database

SYNOPSIS

   createdb [connection-option...] [option...] [dbname [description]]

DESCRIPTION

   createdb creates a new PostgreSQL database.

   Normally, the database user who executes this command becomes the owner
   of the new database. However, a different owner can be specified via
   the -O option, if the executing user has appropriate privileges.

   createdb is a wrapper around the SQL command CREATE DATABASE
   (CREATE_DATABASE(7)). There is no effective difference between creating
   databases via this utility and via other methods for accessing the
   server.

OPTIONS

   createdb accepts the following command-line arguments:

   dbname
       Specifies the name of the database to be created. The name must be
       unique among all PostgreSQL databases in this cluster. The default
       is to create a database with the same name as the current system
       user.

   description
       Specifies a comment to be associated with the newly created
       database.

   -D tablespace
   --tablespace=tablespace
       Specifies the default tablespace for the database. (This name is
       processed as a double-quoted identifier.)

   -e
   --echo
       Echo the commands that createdb generates and sends to the server.

   -E encoding
   --encoding=encoding
       Specifies the character encoding scheme to be used in this
       database. The character sets supported by the PostgreSQL server are
       described in Section 22.3.1, "Supported Character Sets", in the
       documentation.

   -l locale
   --locale=locale
       Specifies the locale to be used in this database. This is
       equivalent to specifying both --lc-collate and --lc-ctype.

   --lc-collate=locale
       Specifies the LC_COLLATE setting to be used in this database.

   --lc-ctype=locale
       Specifies the LC_CTYPE setting to be used in this database.

   -O owner
   --owner=owner
       Specifies the database user who will own the new database. (This
       name is processed as a double-quoted identifier.)

   -T template
   --template=template
       Specifies the template database from which to build this database.
       (This name is processed as a double-quoted identifier.)

   -V
   --version
       Print the createdb version and exit.

   -?
   --help
       Show help about createdb command line arguments, and exit.

   The options -D, -l, -E, -O, and -T correspond to options of the
   underlying SQL command CREATE DATABASE (CREATE_DATABASE(7)); see there
   for more information about them.

   createdb 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 the 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 createdb to prompt for a password before connecting to a
       database.

       This option is never essential, since createdb will automatically
       prompt for a password if the server demands password
       authentication. However, createdb 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 when creating the
       new database. If not specified, the postgres database will be used;
       if that does not exist (or if it is the name of the new database
       being created), template1 will be used.

ENVIRONMENT

   PGDATABASE
       If set, the name of the database to create, unless overridden on
       the command line.

   PGHOST
   PGPORT
   PGUSER
       Default connection parameters.  PGUSER also determines the name of
       the database to create, if it is not specified on the command line
       or by PGDATABASE.

   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 CREATE DATABASE (CREATE_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 create the database demo using the default database server:

       $ createdb demo

   To create the database demo using the server on host eden, port 5000,
   using the LATIN1 encoding scheme with a look at the underlying command:

       $ createdb -p 5000 -h eden -E LATIN1 -e demo
       CREATE DATABASE demo ENCODING 'LATIN1';

SEE ALSO

   dropdb(1), CREATE DATABASE (CREATE_DATABASE(7))

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