How to "group by" renamed fild in ms - access -


i have select working in access

 select case when ziffer = '042'  0 else 1 end id,         case when ziffer = '042'  'fiktiv' else 'regelbesteuert' end code   mwst_code

if try group select id , code keep error

if access support case statment try group so:

 select case when ziffer = '042'  0 else 1 end id,        case when ziffer = '042'  'fiktiv' else 'regelbesteuert' end code       mwst_code        group case when ziffer = '042'  0 else 1 end,             case when ziffer = '042'  'fiktiv' else 'regelbesteuert' end

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