Matching problems in apache configuration

want to match how to write regular for non-hello/admin under hello/.* in apache.
url looks like this:

hello/www/index.php
hello/admin

^hello/([^admin].*)$ 

hello/(?:[^admin].*)

Why not all of the above

MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1eb6350-25b5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1eb6350-25b5.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?