1999-07-06 19:16:42 +02:00
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<refentry id="APP-CREATEDB">
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<refmeta>
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<refentrytitle>
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<application>createdb</application>
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</refentrytitle>
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<refmiscinfo>Application</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>
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<application>createdb</application>
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</refname>
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<refpurpose>
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Create a new <productname>Postgres</productname> database
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</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<refsynopsisdivinfo>
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<date>1998-10-02</date>
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</refsynopsisdivinfo>
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<synopsis>
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createdb [ <replaceable class="parameter">dbname</replaceable> ]
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createdb [ -h <replaceable class="parameter">host</replaceable> ] [ -p <replaceable class="parameter">port</replaceable> ]
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[ -D <replaceable class="parameter">datadir</replaceable> ] [ -u ] [ <replaceable class="parameter">dbname</replaceable> ]
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</synopsis>
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1998-10-05 04:54:45 +02:00
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1999-07-06 19:16:42 +02:00
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<refsect2 id="R2-APP-CREATEDB-1">
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<refsect2info>
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<date>1998-10-02</date>
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</refsect2info>
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<title>
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Inputs
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</title>
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<para>
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<variablelist>
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<varlistentry>
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<term>-h <replaceable class="parameter">host</replaceable></term>
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<listitem>
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<para>
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Specifies the hostname of the machine on which the
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<application>postmaster</application>
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is running. Defaults to using a local Unix domain socket
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rather than an IP connection.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-p <replaceable class="parameter">port</replaceable></term>
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<listitem>
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<para>
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Specifies the Internet TCP/IP port or local Unix domain socket file
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extension on which the <application>postmaster</application>
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is listening for connections. The port number defaults to 5432,
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or the value of the <envar>PGPORT</envar>
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environment variable (if set).
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-u</term>
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<listitem>
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<para>
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Use password authentication.
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Prompts for
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<replaceable class="parameter">username</replaceable>
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and <replaceable class="parameter">password</replaceable>.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term>-D <replaceable class="parameter">datadir</replaceable></term>
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<listitem>
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<para>
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Specifies the alternate database location for this database installation.
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This is the location of the installation system tables, not the location
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of this specific database, which may be different.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><replaceable class="parameter">dbname</replaceable></term>
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<listitem>
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<para>
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Specifies the name of the database to be created. The name must be
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unique among all <productname>Postgres</productname> databases in this installation.
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<replaceable class="parameter">dbname</replaceable>
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defaults to the value of the
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<envar>USER</envar>
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environment variable.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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</refsect2>
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<refsect2 id="R2-APP-CREATEDB-2">
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<refsect2info>
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<date>1998-10-02</date>
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</refsect2info>
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<title>
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Outputs
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</title>
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<para>
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<application>createdb</application> will create files in the
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<filename><envar>PGDATA</envar>/<replaceable class="parameter">dbname</replaceable>/</filename>
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data area for the new database.
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<variablelist>
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<varlistentry>
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<term><computeroutput>
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Connection to database 'template1' failed.
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connectDB() failed: Is the postmaster running and accepting connections at 'UNIX Socket' on port '<replaceable class="parameter">port</replaceable>'?
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createdb: database creation failed on <replaceable class="parameter">dbname</replaceable>.
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</computeroutput></term>
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<listitem>
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<para>
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<application>createdb</application> could not attach to the
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<application>postmaster</application>
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process on the specified host and port. If you see this message,
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ensure that the <application>postmaster</application>
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is running on the proper host and that you have specified the proper
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port. If your site uses an authentication system, ensure that you
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have obtained the required authentication credentials.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><computeroutput>
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Connection to database 'template1' failed.
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FATAL 1: SetUserId: user '<replaceable class="parameter">username</replaceable>' is not in 'pg_shadow'
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createdb: database creation failed on <replaceable class="parameter">dbname</replaceable>.
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</computeroutput></term>
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<listitem>
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<para>
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You do not have a valid entry in the relation <literal>pg_shadow</literal>
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and and will not be allowed to access <productname>Postgres</productname>.
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Contact your <productname>Postgres</productname> administrator.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><computeroutput>
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ERROR: user '<replaceable class="parameter">username</replaceable>' is not allowed to create/destroy databases
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createdb: database creation failed on <replaceable class="parameter">dbname</replaceable>.
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</computeroutput></term>
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<listitem>
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<para>
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You do not have permission to create new databases.
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Contact your <productname>Postgres</productname> site administrator.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><computeroutput>
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ERROR: createdb: database '<replaceable class="parameter">dbname</replaceable>' already exists.
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createdb: database creation failed on <replaceable class="parameter">dbname</replaceable>.
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</computeroutput></term>
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<listitem>
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<para>
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The database already exists.
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</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><computeroutput>
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createdb: database creation failed on <replaceable class="parameter">dbname</replaceable>.
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</computeroutput></term>
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<listitem>
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<para>
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An internal error occurred in <application>psql</application>
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or in the backend server. Ensure that your site administrator has
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properly installed <productname>Postgres</productname>and initialized the site with
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<application>initdb</application>.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</para>
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<note>
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1998-12-29 03:24:47 +01:00
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<para>
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1999-07-06 19:16:42 +02:00
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<application>createdb</application> internally runs
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<command>CREATE DATABASE</command> from <application>psql</application>
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while connected to the <literal>template1</literal> database.
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1998-12-29 03:24:47 +01:00
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</para>
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1999-07-06 19:16:42 +02:00
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</note>
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</refsect2>
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</refsynopsisdiv>
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<refsect1 id="R1-APP-CREATEDB-1">
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<refsect1info>
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<date>1998-10-02</date>
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</refsect1info>
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<title>
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Description
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</title>
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<para>
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<application>createdb</application> creates a new
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<productname>Postgres</productname> database.
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The person who executes this command becomes
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the database administrator, or <acronym>DBA</acronym>,
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for this database and is the only
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person, other than the <productname>Postgres</productname> super-user,
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who can destroy it.
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</para>
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<para>
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<application>createdb</application> is a shell script that invokes
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<application>psql</application>.
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Hence, a <application>postmaster</application>
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process must be running on the database server host before
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<application>createdb</application>
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is executed. The
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<envar>PGOPTION</envar>
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and
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<envar>PGREALM</envar>
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environment variables will be passed on to
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<application>psql</application>
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and processed as described in <xref endterm="psql-ref"
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linkend="app-psql">.
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</para>
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</refsect1>
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<refsect1 id="R1-APP-CREATEDB-2">
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<refsect1info>
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<date>1998-10-02</date>
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</refsect1info>
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<title>
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Usage
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</title>
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<para>
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To create the database <literal>demo</literal>
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using the postmaster on the local host, port 5432:
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<programlisting>
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$ createdb demo
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</programlisting>
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</para>
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<para>
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To create the database <literal>demo</literal>
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using the postmaster on host eden, port 5000:
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<programlisting>
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$ createdb -p 5000 -h eden demo
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</programlisting>
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</para>
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</refsect1>
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</refentry>
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