Mein Fehler. Es muss heißen:
Delphi-Quellcode:
"SELECT " _
& " Invoice.Zeit, " _
& " Invoice.Kontaktaufkommen as IK, " _
& " Acquiredcustomer.Kontaktaufkommen as AK, " _
& " (CInt(Invoice.Kontaktaufkommen) + CInt(Acquiredcustomer.Kontaktaufkommen)) as Kontaktaufkommen " _
& " FROM Acquiredcustomer, Invoice" _
& " WHERE " _
& " Invoice.Zeit = Acquiredcustomer.Zeit" _
& " AND " _
& " Invoice.Datum = '" & FCDate & "' " _
& " AND " _
& " Acquiredcustomer.Datum = '" & FCDate & "' "
Die zusätzliche Bedingung am Schluss liefert mir das Gewünschte! Danke für eure Aufmerksamkeit!