[TYPO3-mvc] Accessing $GLOBALS['TYPO3_DB'] in repository

[Alex Bailey]

Hi,

In my current function I am required to use certain functonality from 
the "old" $GLOBALS['TYPO3_DB'] in my repository. I was told I can just 
use it like in the old pibase system: 
$GLOBALS['TYPO3_DB']->exec_UPDATEquery...etc

And though $GLOBALS containts the TYPO3_DB object I am not able to 
access any function in it.

Is there some special circumstance I am not aware off?

Regards

Alex