Please don't take this the wrong way, I am not judging but just trying to understand how to improve myself and how to become a more helpful member to this community.
I saw a question on MySQL and there was no answer and I answered. Question link: https://stackoverflow.com/questions/13111697/mysql-exception
After one upvote a moderator deleted my answer and the question is still there with no answer.
I read the Faq about answer deletions but can't find a reason for the deletion. Can anyone guide me to improve my answers?