modelBuilder.Entity<VwValuations>(entity =>
  {
    entity.HasKey(e => e.InstrumentId);

    entity.Property(e => e.InstrumentId)
          .HasColumnName("InstrumentId")
          .HasMaxLength(50);

    entity.Property(e => e.Instrument_Name)
          .HasColumnName("Instrument_Name")
          .HasColumnType("nvarchar(4000)");

    entity.Property(e => e.Market_Value_Local_Discount)
          .HasColumnName("Market_Value_Local_Discount")
           .HasColumnType("decimal(38, 5)");

   entity.Property(e => e.PortfolioId)
         .HasColumnName("PortfolioId")
         .HasMaxLength(50);

   entity.Property(e => e.ValuationDate)
         .HasColumnName("ValuationDate")
          .HasColumnType("datetime");
   });