Hi Patrick, all, In my long text from yesterday, there are (at least) two errors:
---- In section 2., about 3 lines below (||-1), there is a "not" missing: Other member expressions (with simple types or component types) are NOT of relevance to this discussion, except where explicitly noted. ---- In section 8., the third of the "Four examples" is simply wrong! The correct argument is: * When we encounter a.B.C.Q == null (which would become a_B_C.Q IS NULL on the database), we do not know anything: This condition becoming true could be the result of a missing a.B, or a missing a.B.C, or actually that a.B.C.Q is null. So we cannot add anything to the "definitely != null" member expression set. Sorry for the glitches. Best regards Harald -- NEU: FreePhone - kostenlos mobil telefonieren und surfen! Jetzt informieren: http://www.gmx.net/de/go/freephone
