Problem with display the different data rows between 2 months
Description: I would like to create a table where I can show the change of the data between 2 months where the field Admin = 'yes'
Details: I want to show only these data rows in the table where the Key field "Key" has changed to the previous month, in my example, where are changes between 2011-Jan and 2011-Feb in the field "Key".
I have tried nearly every possibilities, set analysis with bookmarks, within script, but all without a solution.
I hope somebody could give me a solution for my problem?