find db object is a really nice feature.
But I do not trust it yet.
Tried to search for all objects containing a column "PERSONALE_KATEGORI_KODE"
It didn't show me if there were any among materialized views - but uncertain if the listing of materialized view would indicate that there might be something here ??
Then I tried several times more (selecting/deselecting tables/ views/materialzed views among object types) and suddenly it showed up in the materialized view ABS_JOB_STATISTIKBANK_VERSION
Also there seem to be a limit of 500 objects shown - is it possible to raise that limit in the prefs somewhere?
Finally it would be appreciated, if it was possible to get the results from "find db object" written to a file!
getting a report out of the search results is a standing enhancement request. i'll see about doing something about that for 4.2
there is a limit of 500, no way to raise it today
i'll see if i can reproduce your MV col search issue