我需要找出谁最后更新了一个mysql数据库

Question

我可以在information_schema中获取TABLES的最后更新时间。我可以获得更新数据库或表的用户吗？

Answer 1

As Amadan mentioned, I'm pretty sure there isn't a way to do this unless you record it yourself. However, this is a pretty straightforward thing to do: Whenever you perform an UPDATE query, also log in a separate table the user (as well as any other relevant information) that you want to record via an additional MySQL query. Something like this (written in PHP as you didn't specify a language, but the MySQL can be exported anywhere) will work:

// The update query
$stmt = $db->prepare("UPDATE table SET `col` = ? WHERE `col` = ?");
$stmt->execute(array($var1, $var2));
// Something in table has just been updated; record user's id and time of update
$stmt = $db->prepare("INSERT INTO log (userid, `time`) VALUES (?, NOW())");
$stmt->execute(array($userid));