> >FUNCTION ResolveToMaster (@cUnknown varchar(10)) >RETURNS varchar(10) >AS >begin > > >declare @MasterRef varchar(10) > >select @MasterRef = null > > >select @MasterRef = (Select Distinct MasterRef from Claim where MasterRef = @cUnknown) > >if @MasterRef is null >begin > select @MasterRef = (Select Distinct MasterRef from Claim where CustomerRef = @cUnknown) > >end > >if @MasterRef is null > begin > select @MasterRef = (Select Distinct MasterRef from Claim where ClaimRef = @cUnknown) > > end > > >Return @MasterRef >end > >>