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diff --git a/doc/src/sgml/html/app-dropdb.html b/doc/src/sgml/html/app-dropdb.html new file mode 100644 index 0000000..706e87b --- /dev/null +++ b/doc/src/sgml/html/app-dropdb.html @@ -0,0 +1,111 @@ +<?xml version="1.0" encoding="UTF-8" standalone="no"?> +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>dropdb</title><link rel="stylesheet" type="text/css" href="stylesheet.css" /><link rev="made" href="pgsql-docs@lists.postgresql.org" /><meta name="generator" content="DocBook XSL Stylesheets Vsnapshot" /><link rel="prev" href="app-createuser.html" title="createuser" /><link rel="next" href="app-dropuser.html" title="dropuser" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center"><span class="application">dropdb</span></th></tr><tr><td width="10%" align="left"><a accesskey="p" href="app-createuser.html" title="createuser">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="reference-client.html" title="PostgreSQL Client Applications">Up</a></td><th width="60%" align="center">PostgreSQL Client Applications</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.4 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="app-dropuser.html" title="dropuser">Next</a></td></tr></table><hr /></div><div class="refentry" id="APP-DROPDB"><div class="titlepage"></div><a id="id-1.9.4.6.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle"><span class="application">dropdb</span></span></h2><p>dropdb — remove a <span class="productname">PostgreSQL</span> database</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><div class="cmdsynopsis"><p id="id-1.9.4.6.4.1"><code class="command">dropdb</code> [<em class="replaceable"><code>connection-option</code></em>...] [<em class="replaceable"><code>option</code></em>...] <em class="replaceable"><code>dbname</code></em> </p></div></div><div class="refsect1" id="id-1.9.4.6.5"><h2>Description</h2><p> + <span class="application">dropdb</span> destroys an existing + <span class="productname">PostgreSQL</span> database. + The user who executes this command must be a database + superuser or the owner of the database. + </p><p> + <span class="application">dropdb</span> is a wrapper around the + <acronym class="acronym">SQL</acronym> command <a class="link" href="sql-dropdatabase.html" title="DROP DATABASE"><code class="command">DROP DATABASE</code></a>. + There is no effective difference between dropping databases via + this utility and via other methods for accessing the server. + </p></div><div class="refsect1" id="id-1.9.4.6.6"><h2>Options</h2><p> + <span class="application">dropdb</span> accepts the following command-line arguments: + + </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><em class="replaceable"><code>dbname</code></em></span></dt><dd><p> + Specifies the name of the database to be removed. + </p></dd><dt><span class="term"><code class="option">-e</code><br /></span><span class="term"><code class="option">--echo</code></span></dt><dd><p> + Echo the commands that <span class="application">dropdb</span> generates + and sends to the server. + </p></dd><dt><span class="term"><code class="option">-f</code><br /></span><span class="term"><code class="option">--force</code></span></dt><dd><p> + Attempt to terminate all existing connections to the target database + before dropping it. See <a class="xref" href="sql-dropdatabase.html" title="DROP DATABASE"><span class="refentrytitle">DROP DATABASE</span></a> for more + information on this option. + </p></dd><dt><span class="term"><code class="option">-i</code><br /></span><span class="term"><code class="option">--interactive</code></span></dt><dd><p> + Issues a verification prompt before doing anything destructive. + </p></dd><dt><span class="term"><code class="option">-V</code><br /></span><span class="term"><code class="option">--version</code></span></dt><dd><p> + Print the <span class="application">dropdb</span> version and exit. + </p></dd><dt><span class="term"><code class="option">--if-exists</code></span></dt><dd><p> + Do not throw an error if the database does not exist. A notice is issued + in this case. + </p></dd><dt><span class="term"><code class="option">-?</code><br /></span><span class="term"><code class="option">--help</code></span></dt><dd><p> + Show help about <span class="application">dropdb</span> command line + arguments, and exit. + </p></dd></dl></div><p> + + </p><p> + <span class="application">dropdb</span> also accepts the following + command-line arguments for connection parameters: + + </p><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="option">-h <em class="replaceable"><code>host</code></em></code><br /></span><span class="term"><code class="option">--host=<em class="replaceable"><code>host</code></em></code></span></dt><dd><p> + 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></dd><dt><span class="term"><code class="option">-p <em class="replaceable"><code>port</code></em></code><br /></span><span class="term"><code class="option">--port=<em class="replaceable"><code>port</code></em></code></span></dt><dd><p> + Specifies the TCP port or local Unix domain socket file + extension on which the server + is listening for connections. + </p></dd><dt><span class="term"><code class="option">-U <em class="replaceable"><code>username</code></em></code><br /></span><span class="term"><code class="option">--username=<em class="replaceable"><code>username</code></em></code></span></dt><dd><p> + User name to connect as. + </p></dd><dt><span class="term"><code class="option">-w</code><br /></span><span class="term"><code class="option">--no-password</code></span></dt><dd><p> + Never issue a password prompt. If the server requires + password authentication and a password is not available by + other means such as a <code class="filename">.pgpass</code> 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. + </p></dd><dt><span class="term"><code class="option">-W</code><br /></span><span class="term"><code class="option">--password</code></span></dt><dd><p> + Force <span class="application">dropdb</span> to prompt for a + password before connecting to a database. + </p><p> + This option is never essential, since + <span class="application">dropdb</span> will automatically prompt + for a password if the server demands password authentication. + However, <span class="application">dropdb</span> will waste a + connection attempt finding out that the server wants a password. + In some cases it is worth typing <code class="option">-W</code> to avoid the extra + connection attempt. + </p></dd><dt><span class="term"><code class="option">--maintenance-db=<em class="replaceable"><code>dbname</code></em></code></span></dt><dd><p> + Specifies the name of the database to connect to in order to drop the + target database. If not specified, the <code class="literal">postgres</code> + database will be used; if that does not exist (or is the database + being dropped), <code class="literal">template1</code> will be used. + This can be a <a class="link" href="libpq-connect.html#LIBPQ-CONNSTRING" title="34.1.1. Connection Strings">connection + string</a>. If so, connection string parameters will override any + conflicting command line options. + </p></dd></dl></div><p> + </p></div><div class="refsect1" id="id-1.9.4.6.7"><h2>Environment</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="envar">PGHOST</code><br /></span><span class="term"><code class="envar">PGPORT</code><br /></span><span class="term"><code class="envar">PGUSER</code></span></dt><dd><p> + Default connection parameters + </p></dd><dt><span class="term"><code class="envar">PG_COLOR</code></span></dt><dd><p> + Specifies whether to use color in diagnostic messages. Possible values + are <code class="literal">always</code>, <code class="literal">auto</code> and + <code class="literal">never</code>. + </p></dd></dl></div><p> + This utility, like most other <span class="productname">PostgreSQL</span> utilities, + also uses the environment variables supported by <span class="application">libpq</span> + (see <a class="xref" href="libpq-envars.html" title="34.15. Environment Variables">Section 34.15</a>). + </p></div><div class="refsect1" id="id-1.9.4.6.8"><h2>Diagnostics</h2><p> + In case of difficulty, see <a class="xref" href="sql-dropdatabase.html" title="DROP DATABASE"><span class="refentrytitle">DROP DATABASE</span></a> + and <a class="xref" href="app-psql.html" title="psql"><span class="refentrytitle"><span class="application">psql</span></span></a> 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 <span class="application">libpq</span> front-end + library will apply. + </p></div><div class="refsect1" id="id-1.9.4.6.9"><h2>Examples</h2><p> + To destroy the database <code class="literal">demo</code> on the default + database server: +</p><pre class="screen"> +<code class="prompt">$ </code><strong class="userinput"><code>dropdb demo</code></strong> +</pre><p> + </p><p> + To destroy the database <code class="literal">demo</code> using the + server on host <code class="literal">eden</code>, port 5000, with verification and a peek + at the underlying command: +</p><pre class="screen"> +<code class="prompt">$ </code><strong class="userinput"><code>dropdb -p 5000 -h eden -i -e demo</code></strong> +<code class="computeroutput">Database "demo" will be permanently deleted. +Are you sure? (y/n) </code><strong class="userinput"><code>y</code></strong> +<code class="computeroutput">DROP DATABASE demo;</code> +</pre></div><div class="refsect1" id="id-1.9.4.6.10"><h2>See Also</h2><span class="simplelist"><a class="xref" href="app-createdb.html" title="createdb"><span class="refentrytitle"><span class="application">createdb</span></span></a>, <a class="xref" href="sql-dropdatabase.html" title="DROP DATABASE"><span class="refentrytitle">DROP DATABASE</span></a></span></div></div><div class="navfooter"><hr /><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="app-createuser.html" title="createuser">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="reference-client.html" title="PostgreSQL Client Applications">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="app-dropuser.html" title="dropuser">Next</a></td></tr><tr><td width="40%" align="left" valign="top"><span class="application">createuser</span> </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.4 Documentation">Home</a></td><td width="40%" align="right" valign="top"> <span class="application">dropuser</span></td></tr></table></div></body></html>
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