reassign_owned.sgml

postgresql8.3.4源码,开源数据库

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<refentry id="SQL-REASSIGN-OWNED">
 <refmeta>
  <refentrytitle id="SQL-REASSIGN-OWNED-TITLE">REASSIGN OWNED</refentrytitle>
  <refmiscinfo>SQL - Language Statements</refmiscinfo>
 </refmeta>

 <refnamediv>
  <refname>REASSIGN OWNED</refname>
  <refpurpose>change the ownership of database objects owned by a database role</refpurpose>
 </refnamediv>

 <indexterm zone="sql-reassign-owned">
  <primary>REASSIGN OWNED</primary>
 </indexterm>

 <refsynopsisdiv>
<synopsis>
REASSIGN OWNED BY <replaceable class="PARAMETER">old_role</replaceable> [, ...] TO <replaceable class="PARAMETER">new_role</replaceable>
</synopsis>
 </refsynopsisdiv>

 <refsect1>
  <title>Description</title>

  <para>
   <command>REASSIGN OWNED</command> instructs the system to change
   the ownership of the database objects owned by one of the
   old_roles, to new_role.
  </para>
 </refsect1>

 <refsect1>
  <title>Parameters</title>

  <variablelist>
   <varlistentry>
    <term><replaceable class="PARAMETER">old_role</replaceable></term>
    <listitem>
     <para>
      The name of a role. The ownership of all the objects in the
      current database owned by this role will be reassigned to
      <replaceable class="PARAMETER">new_role</replaceable>.
     </para>
    </listitem>
   </varlistentry>

   <varlistentry>
    <term><replaceable class="PARAMETER">new_role</replaceable></term>
    <listitem>
     <para>
      The name of the role that will be made the new owner of the
      affected objects.
     </para>
    </listitem>
   </varlistentry>
  </variablelist>
 </refsect1>

 <refsect1>
  <title>Notes</title>

  <para>
   <command>REASSIGN OWNED</command> is often used to prepare for the
   removal of one or more roles. Because <command>REASSIGN
   OWNED</command> only affects the objects in the current database,
   it is usually necessary to execute this command in each database
   that contains objects owned by a role that is to be removed.
  </para>

  <para>
   The <xref linkend="sql-drop-owned"
    endterm="sql-drop-owned-title"> command is an alternative that
   drops all the database objects owned by one or more roles.
  </para>

  <para>
   The <command>REASSIGN OWNED</command> command does not affect the
   privileges granted to the old_roles in objects that are not owned
   by them.  Use <command>DROP OWNED</command> to revoke those
   privileges.
  </para>

 </refsect1>

 <refsect1>
  <title>Compatibility</title>

  <para>
   The <command>REASSIGN OWNED</command> statement is a
   <productname>PostgreSQL</productname> extension.
  </para>
 </refsect1>

 <refsect1>
  <title>See Also</title>

  <simplelist type="inline">
   <member><xref linkend="sql-drop-owned" endterm="sql-drop-owned-title"></member>
   <member><xref linkend="sql-droprole" endterm="sql-droprole-title"></member>
  </simplelist>
 </refsect1>

</refentry>