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244 lines
6.1 KiB
Plaintext
244 lines
6.1 KiB
Plaintext
<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/dropdb.sgml,v 1.25 2003/09/12 23:04:46 tgl Exp $
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PostgreSQL documentation
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-->
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<refentry id="APP-DROPDB">
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<refmeta>
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<refentrytitle id="APP-DROPDB-TITLE"><application>dropdb</application></refentrytitle>
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<manvolnum>1</manvolnum>
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<refmiscinfo>Application</refmiscinfo>
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</refmeta>
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<refnamediv>
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<refname>dropdb</refname>
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<refpurpose>remove a <productname>PostgreSQL</productname> database</refpurpose>
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</refnamediv>
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<indexterm zone="app-dropdb">
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<primary>dropdb</primary>
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</indexterm>
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<refsynopsisdiv>
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<cmdsynopsis>
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<command>dropdb</command>
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<arg rep="repeat"><replaceable>option</replaceable></arg>
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<arg choice="plain"><replaceable>dbname</replaceable></arg>
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</cmdsynopsis>
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</refsynopsisdiv>
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<refsect1>
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<title>Description</title>
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<para>
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<application>dropdb</application> destroys an existing
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<productname>PostgreSQL</productname> database.
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The user who executes this command must be a database
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superuser or the owner of the database.
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</para>
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<para>
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<application>dropdb</application> is a wrapper around the
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<acronym>SQL</acronym> command <xref linkend="SQL-DROPDATABASE"
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endterm="SQL-DROPDATABASE-title">.
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There is no effective difference between dropping databases via
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this utility and via other methods for accessing the server.
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</para>
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</refsect1>
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<refsect1>
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<title>Options</title>
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<para>
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<application>dropdb</> accepts the following command-line arguments:
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<variablelist>
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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 removed.
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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><option>-e</></term>
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<term><option>--echo</></term>
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<listitem>
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<para>
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Echo the commands that <application>dropdb</application> generates
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and sends to the server.
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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><option>-i</></term>
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<term><option>--interactive</></term>
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<listitem>
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<para>
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Issues a verification prompt before doing anything destructive.
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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><option>-q</></term>
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<term><option>--quiet</></term>
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<listitem>
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<para>
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Do not display a response.
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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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<para>
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<application>dropdb</application> also accepts the following
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command-line arguments for connection parameters:
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<variablelist>
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<varlistentry>
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<term><option>-h <replaceable class="parameter">host</replaceable></></term>
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<term><option>--host <replaceable class="parameter">host</replaceable></></term>
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<listitem>
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<para>
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Specifies the host name of the machine on which the
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server
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is running. If the value begins with a slash, it is used
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as the directory for the Unix domain socket.
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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><option>-p <replaceable class="parameter">port</replaceable></></term>
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<term><option>--port <replaceable class="parameter">port</replaceable></></term>
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<listitem>
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<para>
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Specifies the TCP port or local Unix domain socket file
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extension on which the server
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is listening for connections.
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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><option>-U <replaceable class="parameter">username</replaceable></></term>
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<term><option>--username <replaceable class="parameter">username</replaceable></></term>
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<listitem>
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<para>
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User name to connect as
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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><option>-W</></term>
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<term><option>--password</></term>
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<listitem>
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<para>
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Force password prompt.
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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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</refsect1>
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<refsect1>
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<title>Environment</title>
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<variablelist>
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<varlistentry>
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<term><envar>PGHOST</envar></term>
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<term><envar>PGPORT</envar></term>
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<term><envar>PGUSER</envar></term>
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<listitem>
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<para>
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Default connection parameters
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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</refsect1>
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<refsect1>
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<title>Diagnostics</title>
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<para>
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In case of difficulty, see <xref linkend="SQL-DROPDATABASE"
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endterm="sql-dropdatabase-title"> and <xref linkend="APP-PSQL"> for
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discussions of potential problems and error messages.
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The database server must be running at the
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targeted host. Also, any default connection settings and environment
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variables used by the <application>libpq</application> front-end
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library will apply.
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</para>
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</refsect1>
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<refsect1>
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<title>Examples</title>
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<para>
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To destroy the database <literal>demo</literal> on the default
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database server:
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<screen>
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<prompt>$ </prompt><userinput>dropdb demo</userinput>
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<computeroutput>DROP DATABASE</computeroutput>
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</screen>
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</para>
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<para>
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To destroy the database <literal>demo</literal> using the
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server on host <literal>eden</literal>, port 5000, with verification and a peek
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at the underlying command:
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<screen>
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<prompt>$ </prompt><userinput>dropdb -p 5000 -h eden -i -e demo</userinput>
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<computeroutput>Database "demo" will be permanently deleted.
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Are you sure? (y/n) </computeroutput><userinput>y</userinput>
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<computeroutput>DROP DATABASE "demo"
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DROP DATABASE</computeroutput>
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</screen>
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</para>
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</refsect1>
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<refsect1>
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<title>See Also</title>
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<simplelist type="inline">
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<member><xref linkend="app-createdb"></member>
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<member><xref linkend="sql-dropdatabase" endterm="sql-dropdatabase-title"></member>
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</simplelist>
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</refsect1>
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</refentry>
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<!-- Keep this comment at the end of the file
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Local variables:
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mode: sgml
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sgml-shorttag:t
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sgml-minimize-attributes:nil
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sgml-always-quote-attributes:t
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sgml-indent-step:1
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sgml-indent-data:t
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sgml-parent-document:nil
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sgml-default-dtd-file:"../reference.ced"
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sgml-exposed-tags:nil
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sgml-local-catalogs:"/usr/lib/sgml/catalog"
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sgml-local-ecat-files:nil
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End:
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-->
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