code: @Override
      public MySQLDatabase deleteSequence(final Connection _con,
                                          final String _name)
          throws SQLException
      {
          final String cmd = new StringBuilder()
              .append("DROP TABLE `").append(MySQLDatabase.PREFIX_SEQUENCE).append(_name.toLowerCase()).append("`")
              .toString();
          final Statement stmt = _con.createStatement();
          try {
              stmt.executeUpdate(cmd);
          } finally {
              stmt.close();
          }
          return this;
      }
docs: Deletes given sequence <code>_name</code> which is internally
  represented by this MySQL connector as normal SQL table. The name of the
  SQL table to delete is a concatenation of {@link #PREFIX_SEQUENCE} and
  <code>_name</code> in lower case.
  
  @param _con      SQL connection
  @param _name     name of the sequence
  @return this instance
  @throws SQLException if sequence (simulated by an auto increment SQL
  table) could not be deleted
  @see #PREFIX_SEQUENCE