如何只删除一个记录并非所有具有相同内容的记录？

Question

I echoed some data from database, now when I want to delete some records I have a problem.

Let say I have this records: 3, 3, 4, 6, 3.

<input type="radio" name="ocenaa" value="' . $row['slo'] . '">

When I want to delete the last record (3), it deletes me all records that have content 3...

My query:

$sql="DELETE FROM frend WHERE slo=('$_POST[ocenaa]')";

How can I delete just last record not all three?

Answer 1

It's doing what you would expect... Your data isn't unique. Use unique I'd for each row.

Is there any other way of identifying the row?