Enable or Disable Archivelog in oracle

Enable or Disable Archivelog in oracle:

Enable:
C:\>SQLPlus

SQL&gt; Shutdown immediate
SQL&gt; startup mount
SQL&gt; ALTER DATABASE archivelog;
SQL&gt; ALTER DATABASE OPEN;

Disable:
C:\>SQLPlus

SQL&gt; Shutdown immediate
SQL&gt; startup mount
SQL&gt; ALTER DATABASE noarchivelog;
SQL&gt; ALTER DATABASE OPEN;

Check the status:
C:\>SQLPlus

SQL&gt; SELECT log_mode FROM v$database;