Citartry (Connection con = L2DatabaseFactory.getInstance().getConnection();
PreparedStatement ps = con.prepareStatement("UPDATE clan_data SET clan_name = ? WHERE clan_id = ?"))
{
ps.setString(1, val);
ps.setInt(2, st.getPlayer().getClanId());
ps.execute();
}
catch (Exception e)
{
_log.warn("Couldn't update clan privs for old clan leader", e);
}
st.getPlayer().getClan().setName(val);
st.getPlayer().sendMessage("Your Clan name has been changed to " + val);
st.getPlayer().broadcastUserInfo();
val --> Es el nuevo nombre que vas a darle al clan.
st.getPlayer().getClanId() --> Es la id del clan al que vas a cambiar el nombre.
By djjose