Carel Combrink schrieb:
[...]
> 2.) This question is related to triggers. Can I use a trigger to notify
> my external application about a change in the database. I am looking at
> using QT for development because of its platform independence. Thus the
> complete question is: Can I notify the QT application that data was
> added to the database (using a trigger) without having to query the
> database the whole time?
Have a look at the docu of Qt4.4:
http://doc.trolltech.com/4.4/qsqldriver.html#notification
Stefan