试图选择具有最高时间戳值和最低ID值的20个项目？

问题描述

| 我正在尝试选择\'TimeStamp \'值最高的20行，并从那20行中选择ID值最低的1行：

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

上面的查询不起作用，但对我来说有意义。这个查询有问题吗？     

解决方法

错误是is1ѭ，的确如此。这应该工作：

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

    ,尝试这样的事情：

$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);