Hi Chris,

Attached you can find the execution plan (I've never used this feature, it seems to be very cool).

If you look at the first figure (from my 1st post) there is a column called "KUNDE_KEY" which is a business key, and a numerical field.

You are absolutely right, leading-zero values must be strings, I haven't notice 😀

Now I'll dig deep into execution plans :alien:

Thanks for your time,

Paul