admin edit link from a specific page

I am not sure I completely follow your second example.

You can use get_edit_post_link() template tag, which will output the link to admin side for the current post (only for users who can edit the post).

If you just want pretty link for that there is no native way, but it looks similar to what Slash Edit plugin does.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)