按ID MYSQL排序

Question

我这里有我的代码

$query=mysqli_query($dbcon,"select count(user_name) from `viewlist` where user_name='$_name'");

我想要做的是它只显示带有用户名$_name的列，但是将它排列在通过id递减的表上（这是自动递增）。我尝试按照DESC订购，但没有工作。

Answer 1

也许..

$query=mysqli_query($dbcon,"select tb.* from (select count(user_name) as total from `viewlist` group by user_name) as tb order by tb.total desc");