Minor improvement to DROP TABLE reference page.

doc/src/sgml/ref/drop_table.sgml

 <!--
-$PostgreSQL: pgsql/doc/src/sgml/ref/drop_table.sgml,v 1.23 2005/11/19 17:39:44 adunstan Exp $
+$PostgreSQL: pgsql/doc/src/sgml/ref/drop_table.sgml,v 1.24 2006/04/02 03:56:40 neilc Exp $
 PostgreSQL documentation
 -->
 
@@ -29,8 +29,10 @@ DROP TABLE [ IF EXISTS ] <replaceable class="PARAMETER">name</replaceable> [, ..
 
   <para>
    <command>DROP TABLE</command> removes tables from the database.
-   Only its owner may destroy a table.  To empty a table of rows,
-   without destroying the table, use <command>DELETE</command>.
+   Only its owner may destroy a table.  To empty a table of rows
+   without destroying the table, use <xref linkend="sql-delete"
+   endterm="sql-delete-title"> or <xref linkend="sql-truncate"
+   endterm="sql-truncate-title">.
   </para>
 
   <para>