<!--
doc/src/sgml/ref/alter_user.sgml
PostgreSQL documentation
-->

<refentry id="SQL-ALTERUSER">
 <indexterm zone="sql-alteruser">
  <primary>ALTER USER</primary>
 </indexterm>

 <refmeta>
  <refentrytitle>ALTER USER</refentrytitle>
  <manvolnum>7</manvolnum>
  <refmiscinfo>SQL - Language Statements</refmiscinfo>
 </refmeta>

 <refnamediv>
  <refname>ALTER USER</refname>
  <refpurpose>change a database role</refpurpose>
 </refnamediv>

 <refsynopsisdiv>
<synopsis>
ALTER USER <replaceable class="PARAMETER">role_specification</replaceable> [ WITH ] <replaceable class="PARAMETER">option</replaceable> [ ... ]

<phrase>where <replaceable class="PARAMETER">option</replaceable> can be:</phrase>

      SUPERUSER | NOSUPERUSER
    | CREATEDB | NOCREATEDB
    | CREATEROLE | NOCREATEROLE
    | INHERIT | NOINHERIT
    | LOGIN | NOLOGIN
    | REPLICATION | NOREPLICATION
    | 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>new_name</replaceable>

ALTER USER <replaceable class="PARAMETER">role_specification</replaceable> SET <replaceable>configuration_parameter</replaceable> { TO | = } { <replaceable>value</replaceable> | DEFAULT }
ALTER USER <replaceable class="PARAMETER">role_specification</replaceable> SET <replaceable>configuration_parameter</replaceable> FROM CURRENT
ALTER USER <replaceable class="PARAMETER">role_specification</replaceable> RESET <replaceable>configuration_parameter</replaceable>
ALTER USER <replaceable class="PARAMETER">role_specification</replaceable> RESET ALL

<phrase>where <replaceable class="PARAMETER">role_specification</replaceable> can be:</phrase>

    [ GROUP ] <replaceable class="PARAMETER">role_name</replaceable>
  | CURRENT_USER
  | SESSION_USER
</synopsis>
 </refsynopsisdiv>

 <refsect1>
  <title>Description</title>

  <para>
   <command>ALTER USER</command> is now an alias for
   <xref linkend="sql-alterrole">.
  </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"></member>
  </simplelist>
 </refsect1>
</refentry>
