CB Query Field 3.0.0 released!

If you want to condition against viewing user profile data you don't need CB Query Field. Set your CB Condition to Custom > Value then just substitute in the viewing users profile data. See the below tutorial for substitution usage information and see my examples in my previous reply.

www.joomlapolis.com/support/tutorials/107-use-cases/18353-using-substitutions-throughout-cb

Thanks, I solved by comparing the logged in user types ([cb:userdata field="cb_usertype" user="#me" /]) with the (user type).

Is it possible do the same work for the menù items in the user profile? I hid "Tab Photos" fot the user "Company" so I wish that not appear on the menu the itmes "Update your picture" and "Delete Picture"

You could use CB Auto Actions on the profile display trigger using a Code action to add CSS or jQuery to remove those menu items. Note those menu items are removed in CB 2.0. Aside from that no, there's no way to condition the menu items without altering core code of CB Menu.

I saw that the official release of version 2.0 is scheduled for the day 9. I wait the new version so I see the changes that it going to apply and then I set it. Can I safely install it on the site already in place? The installed components will continue to function?
Thanks.

Is it possible to concatenate strings with CB Query?
Ex. SELECT 'Mister' + `firstname` FROM `#__comprofiler` WHERE `id` = '[user_id]'
Thanks.

Yes, you need to use MYSQL function concat. Please see MYSQL documentation below.

dev.mysql.com/doc/refman/5.6/en/index.html