Thanks, Dennis.
Unfortunately, I`m still encountering some problems with the DateValue function. My date/time field has this format: yyyy-mm-dd hh:nn:ss . If I use DateValue, nothing will be returned. Changing the format to yyyy-mm-dd in the Access DB didn`t help and I do need the time. Combining DateValue and TimeValue let to several errors. Using only TimeValue did not help me out. LabVIEW does not indicate errors anymore, therefore the syntax should be fine. But I don`t get any information back from my database.