假设我有10,000行需要更新。什么会更快UPDATE DB.Servers SET Live = 1 where name = 'server2';UPDATE DB.Servers SET Live = 1 where name = 'server100000';
UPDATE DB.Servers SET Live = 1 where name in ('server1', 'serve
$check_con = mysql_query("SELECT count(hash) FROM messages_group WHERE (user_one=$my_id AND user_two=$other_id) OR (user_one=$other_id AND user_two=$my_id)");
$currenthash=$amsik['hash'];
if ($amsi