I'm having problems with my host right now and can't be able to access my joomla admin, I need to delete 1 post content where I have the url of that page. I can only access the database, how will I locate it in my database. this is the url: http://www.xxxxxx.net/index.php?option=com_content&task=view&id=64&Itemid=44
Why did you censor out the URL? Go into phpMyAdmin in your cPanel under MySQL databases (assuming you installed Joomla on MySQL), find the database you installed the Joomla tables in, and use the search function to find your post that you want deleted. Drop that entry when you find it.