[Typo3] Select Pro and fe-user

[redford]

Hi,

i try to access a database with a simple query. No problem with Select Pro. 
But how can i access global variables in Select Pro?

Sample:
SELECT `company`,`zip`,`city` FROM `fe_users` WHERE `username` =
('.$GLOBALS["TSFE"]->fe_user->user["username"].')

This sample doesn`t work

Rudolf Melching