Date =
ADDCOLUMNS(                                         
  CALENDAR (DATE(2009,1,1), DATE(2010,12,31))       
, "DateAsInteger"   , FORMAT ( [Date], "YYYYMMDD" ) 
, "Year"            , YEAR( [Date] )                
, "Monthnumber"     , FORMAT ( [Date], "MM" )       
, "YearMonthnumber" , FORMAT ( [Date], "YYYY/MM" )  
, "YearMonthShort"  , FORMAT ( [Date], "YYYY/mmm" ) 
, "MonthNameShort"  , FORMAT ( [Date], "mmm" )      
, "MonthNameLong"   , FORMAT ( [Date], "mmmm" )     
, "DayOfWeekNumber" , WEEKDAY( [Date] )             
, "DayOfWeek"       , FORMAT ( [Date], "dddd" )     
, "DayOfWeekShort"  , FORMAT ( [Date], "ddd" )      
, "Quarter"         , "Q" & FORMAT ( [Date], "Q" )  
, "YearQuarter"     , FORMAT ( [Date], "YYYY" ) & "/Q" & FORMAT ( [Date], "Q" )
)
//--   plus 3 Steps                        
//  1. "Mark-as-DateTable"                 
//  2. Sortierung der Spalten (Monatsnamen)
//  3. Kalender-Hierarchy                  
//-----------------------------------------