Hvis det er CardIdentity der er 2 af, kan det løses sådan:
WITH C AS ( SELECT FkUserNumber, CardIdentity ,row_number() over(partition by FkUserNumber) Nr FROM Cards ) SELECT UserGroups.GroupName, Users.FirstName, Users.LastName, Users.Address, Users.City, Users.PostalCode, Users.Email, Users.WebPassword ,(SELECT CardIdentity from C where FkUserNumber = Users.PkUserNumber and Nr = 1 ) Id1 ,(SELECT CardIdentity from C where FkUserNumber = Users.PkUserNumber and Nr = 2 ) Id2 FROM Users INNER JOIN UserGroups ON Users.FkUserGroup = UserGroups.PkGroupNumber WHERE (UserGroups.GroupName LIKE 'Be%')
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