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233 lines
6.1 KiB
Plaintext
233 lines
6.1 KiB
Plaintext
<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/ref/dropdb.sgml,v 1.1 1999/12/04 04:53:15 momjian Exp $
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Postgres 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">
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<application>dropdb</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>dropdb</application>
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</refname>
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<refpurpose>
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Remove an existing <productname>PostgreSQL</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>1999-11-07</date>
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</refsynopsisdivinfo>
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<synopsis>
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dropdb [ <replaceable class="parameter">options</replaceable> ] <replaceable class="parameter">dbname</replaceable>
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</synopsis>
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<refsect2 id="R2-APP-DROPDB-1">
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<refsect2info>
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<date>1999-11-07</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, --host <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.
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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, --port <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.
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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, --username <replaceable class="parameter">username</replaceable></term>
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<listitem>
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<para>
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Username 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>-W, --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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<varlistentry>
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<term>-e, --echo</term>
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<listitem>
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<para>
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Echo the queries that <application>dropdb</application> generates
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and sends to the backend.
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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>-q, --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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<varlistentry>
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<term>-i, --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><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. The database
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must be one of the existing <productname>PostgreSQL</productname> databases
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in this installation.
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</para>
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</listitem>
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</varlistentry>
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</variablelist>
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The options <literal>-h</literal>, <literal>-p</literal>, <literal>-U</literal>,
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<literal>-W</literal>, and <literal>-e</literal> are passed on literally to
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<xref linkend="APP-PSQL" endterm="APP-PSQL-title">.
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</para>
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</refsect2>
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<refsect2 id="R2-APP-DROPDB-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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<variablelist>
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<varlistentry>
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<term><computeroutput>DROP DATABASE</computeroutput></term>
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<listitem>
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<para>The database was successfully removed.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><computeroutput>dropdb: Database removal failed.</computeroutput></term>
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<listitem>
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<para>Something didn't work out.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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If there is an error condition, the backend error message will be displayed.
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See <xref linkend="SQL-DROPDATABASE" endterm="SQL-DROPDATABASE-title">
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and <xref linkend="APP-PSQL" endterm="APP-PSQL-title"> for possibilities.
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</para>
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</refsect2>
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</refsynopsisdiv>
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<refsect1 id="R1-APP-DROPDB-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>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 shell script wrapper around the
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<acronym>SQL</acronym> command
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<xref linkend="SQL-DROPDATABASE" endterm="SQL-DROPDATABASE-title"> via
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the <productname>PostgreSQL</productname> interactive terminal
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<xref linkend="APP-PSQL" endterm="APP-PSQL-title">. Thus, there is nothing
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special about dropping databases via this or other methods. This means
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that the <application>psql</application> must be found by the script and that
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a database server is running at the targeted host. Also, any default
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settings and environment variables available to <application>psql</application>
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and the <application>libpq</application> front-end library do apply.
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</para>
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</refsect1>
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<refsect1 id="R1-APP-DROPDB-2">
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<refsect1info>
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<date>1999-11-07</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 destroy the database <literal>demo</literal>
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on the default database server:
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<programlisting>
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$ <userinput>dropdb demo</userinput>
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DROP DATABASE
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</programlisting>
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</para>
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<para>
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To destroy the database <literal>demo</literal>
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using the postmaster on host eden, port 5000, with verification
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and a peek at the underlying query:
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<programlisting>
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$ <userinput>dropdb -p 5000 -h eden -i -e demo</userinput>
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Database "demo" will be permanently deleted.
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Are you sure? (y/n) <userinput>y</userinput>
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QUERY: DROP DATABASE "demo"
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DROP DATABASE
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</programlisting>
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</para>
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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-omittag:nil
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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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