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<!--
$PostgreSQL: pgsql/doc/src/sgml/ref/alter_user.sgml,v 1.39 2005/07/31 17:19:17 tgl Exp $
PostgreSQL documentation
-->
<refentry id="SQL-ALTERUSER">
<refmeta>
<refentrytitle id="sql-alteruser-title">ALTER USER</refentrytitle>
<refmiscinfo>SQL - Language Statements</refmiscinfo>
</refmeta>
<refnamediv>
<refname>ALTER USER</refname>
<refpurpose>change a database role</refpurpose>
</refnamediv>
<indexterm zone="sql-alteruser">
<primary>ALTER USER</primary>
</indexterm>
<refsynopsisdiv>
<synopsis>
ALTER USER <replaceable class="PARAMETER">name</replaceable> [ [ WITH ] <replaceable class="PARAMETER">option</replaceable> [ ... ] ]
where <replaceable class="PARAMETER">option</replaceable> can be:
SUPERUSER | NOSUPERUSER
| CREATEDB | NOCREATEDB
| CREATEROLE | NOCREATEROLE
| CREATEUSER | NOCREATEUSER
| INHERIT | NOINHERIT
| LOGIN | NOLOGIN
| CONNECTION LIMIT <replaceable class="PARAMETER">connlimit</replaceable>
| [ ENCRYPTED | UNENCRYPTED ] PASSWORD '<replaceable class="PARAMETER">password</replaceable>'
| VALID UNTIL '<replaceable class="PARAMETER">timestamp</replaceable>'
ALTER USER <replaceable class="PARAMETER">name</replaceable> RENAME TO <replaceable>newname</replaceable>
ALTER USER <replaceable class="PARAMETER">name</replaceable> SET <replaceable>parameter</replaceable> { TO | = } { <replaceable>value</replaceable> | DEFAULT }
ALTER USER <replaceable class="PARAMETER">name</replaceable> RESET <replaceable>parameter</replaceable>
</synopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>
<command>ALTER USER</command> is now an alias for
<xref linkend="sql-alterrole" endterm="sql-alterrole-title">,
which see for more information.
</para>
</refsect1>
<refsect1>
<title>Compatibility</title>
<para>
The <command>ALTER USER</command> statement is a
<productname>PostgreSQL</productname> extension. The SQL standard
leaves the definition of users to the implementation.
</para>
</refsect1>
<refsect1>
<title>See Also</title>
<simplelist type="inline">
<member><xref linkend="sql-alterrole" endterm="sql-alterrole-title"></member>
</simplelist>
</refsect1>
</refentry>
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