Thanks for Helping me @all! Now it Works fine. I've had an Program bug in our Internal createView Method.
wrong:
create view
use view
dbsetprop("Fetch....
right:
create view
dbsetprop("Fetch....
use view
Bud the wrong order works in my method since 3 Years with nearly no error. Now it works without an error! :-)
Thanks for Input @all!
Greetings from Germany