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<!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>CREATE USER MAPPING</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="sql-createuser.html" title="CREATE USER" /><link rel="next" href="sql-createview.html" title="CREATE VIEW" /></head><body id="docContent" class="container-fluid col-10"><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="5" align="center">CREATE USER MAPPING</th></tr><tr><td width="10%" align="left"><a accesskey="p" href="sql-createuser.html" title="CREATE USER">Prev</a> </td><td width="10%" align="left"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><th width="60%" align="center">SQL Commands</th><td width="10%" align="right"><a accesskey="h" href="index.html" title="PostgreSQL 15.7 Documentation">Home</a></td><td width="10%" align="right"> <a accesskey="n" href="sql-createview.html" title="CREATE VIEW">Next</a></td></tr></table><hr /></div><div class="refentry" id="SQL-CREATEUSERMAPPING"><div class="titlepage"></div><a id="id-1.9.3.96.1" class="indexterm"></a><div class="refnamediv"><h2><span class="refentrytitle">CREATE USER MAPPING</span></h2><p>CREATE USER MAPPING — define a new mapping of a user to a foreign server</p></div><div class="refsynopsisdiv"><h2>Synopsis</h2><pre class="synopsis">
CREATE USER MAPPING [ IF NOT EXISTS ] FOR { <em class="replaceable"><code>user_name</code></em> | USER | CURRENT_ROLE | CURRENT_USER | PUBLIC }
    SERVER <em class="replaceable"><code>server_name</code></em>
    [ OPTIONS ( <em class="replaceable"><code>option</code></em> '<em class="replaceable"><code>value</code></em>' [ , ... ] ) ]
</pre></div><div class="refsect1" id="id-1.9.3.96.5"><h2>Description</h2><p>
   <code class="command">CREATE USER MAPPING</code> defines a mapping of a user
   to a foreign server.  A user mapping typically encapsulates
   connection information that a foreign-data wrapper uses together
   with the information encapsulated by a foreign server to access an
   external data resource.
  </p><p>
   The owner of a foreign server can create user mappings for that
   server for any user.  Also, a user can create a user mapping for
   their own user name if <code class="literal">USAGE</code> privilege on the server has
   been granted to the user.
  </p></div><div class="refsect1" id="id-1.9.3.96.6"><h2>Parameters</h2><div class="variablelist"><dl class="variablelist"><dt><span class="term"><code class="literal">IF NOT EXISTS</code></span></dt><dd><p>
      Do not throw an error if a mapping of the given user to the given foreign
      server already exists. A notice is issued in this case.  Note that there
      is no guarantee that the existing user mapping is anything like the one
      that would have been created.
     </p></dd><dt><span class="term"><em class="replaceable"><code>user_name</code></em></span></dt><dd><p>
      The name of an existing user that is mapped to foreign server.
      <code class="literal">CURRENT_ROLE</code>, <code class="literal">CURRENT_USER</code>, and <code class="literal">USER</code> match the name of
      the current user.  When <code class="literal">PUBLIC</code> is specified, a
      so-called public mapping is created that is used when no
      user-specific mapping is applicable.
     </p></dd><dt><span class="term"><em class="replaceable"><code>server_name</code></em></span></dt><dd><p>
      The name of an existing server for which the user mapping is
      to be created.
     </p></dd><dt><span class="term"><code class="literal">OPTIONS ( <em class="replaceable"><code>option</code></em> '<em class="replaceable"><code>value</code></em>' [, ... ] )</code></span></dt><dd><p>
      This clause specifies the options of the user mapping.  The
      options typically define the actual user name and password of
      the mapping.  Option names must be unique.  The allowed option
      names and values are specific to the server's foreign-data wrapper.
     </p></dd></dl></div></div><div class="refsect1" id="id-1.9.3.96.7"><h2>Examples</h2><p>
   Create a user mapping for user <code class="literal">bob</code>, server <code class="literal">foo</code>:
</p><pre class="programlisting">
CREATE USER MAPPING FOR bob SERVER foo OPTIONS (user 'bob', password 'secret');
</pre></div><div class="refsect1" id="id-1.9.3.96.8"><h2>Compatibility</h2><p>
   <code class="command">CREATE USER MAPPING</code> conforms to ISO/IEC 9075-9 (SQL/MED).
  </p></div><div class="refsect1" id="id-1.9.3.96.9"><h2>See Also</h2><span class="simplelist"><a class="xref" href="sql-alterusermapping.html" title="ALTER USER MAPPING"><span class="refentrytitle">ALTER USER MAPPING</span></a>, <a class="xref" href="sql-dropusermapping.html" title="DROP USER MAPPING"><span class="refentrytitle">DROP USER MAPPING</span></a>, <a class="xref" href="sql-createforeigndatawrapper.html" title="CREATE FOREIGN DATA WRAPPER"><span class="refentrytitle">CREATE FOREIGN DATA WRAPPER</span></a>, <a class="xref" href="sql-createserver.html" title="CREATE SERVER"><span class="refentrytitle">CREATE SERVER</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="sql-createuser.html" title="CREATE USER">Prev</a> </td><td width="20%" align="center"><a accesskey="u" href="sql-commands.html" title="SQL Commands">Up</a></td><td width="40%" align="right"> <a accesskey="n" href="sql-createview.html" title="CREATE VIEW">Next</a></td></tr><tr><td width="40%" align="left" valign="top">CREATE USER </td><td width="20%" align="center"><a accesskey="h" href="index.html" title="PostgreSQL 15.7 Documentation">Home</a></td><td width="40%" align="right" valign="top"> CREATE VIEW</td></tr></table></div></body></html>