Batasan tabel silang MS SQL Server

Anda dapat membuat tampilan yang diindeks berdasarkan Relation dan Screen tabel dan terapkan batasan unik di sana.

create view DRI_UniqueScreens
with SCHEMABINDING
as
    select r.AppId,s.Name
    from
       [Schema].Relation r
         inner join
       [Schema].Screen s
         on
            r.ScreenId = s.ScreenId
GO
CREATE UNIQUE CLUSTERED INDEX IX_DRI_UniqueScreens
    on DRI_UniqueScreens (AppId,Name)