Code: Alles auswählen.
define view entity blablalb
as select from A as A
association [1..1] to B as _B on $projection.x = _B.x
association [1..1] to C as _C on $projection.x = _C.x
and $projection.y = _C.y
association [1..1] to C as _C on _B.z = _C.z <- funktioniert nicht wie gewünscht
{
key x,
key y,
_B,
_C
}