试图选择具有最高时间戳值和最低ID值的20个项目？

$result_last = mysql_query(\"SELECT * FROM (SELECT * FROM Events ORDER BY TimeStamp DESC LIMIT 20) ORDER BY ID ASC LIMIT 1\");

$result_last = mysql_query(\"SELECT * FROM (SELECT * FROM Events ORDER BY TimeStamp DESC LIMIT 20) AS T ORDER BY ID ASC LIMIT 1\");

$result_last = mysql_query(\"SELECT * FROM Events WHERE TimeStamp IN(SELECT TimeStamp FROM Events ORDER BY TimeStamp DESC LIMIT 10\") ORDER BY TimeStamp ASC LIMIT 1);