Hi Eberhard,
CR cannot display what's not available in the database.
Let's say you have a Date field as the Row and a summary field. If the database does not have any data for a particular day. CR will skip that day.
As a workaround, you'd need to build a look-up table, either in the database or via a SQL query. You would then LEFT JOIN from this look-up table to the table that holds the summary fields.
When you use the Date Field from this look-up table, you'll see all records. For any Dates with no data, CR displays zeroes.
E.g: how to insert an non exist current year( monthl... | SCN
Displaying all missing dates in a range
-Abhilash