Following section demonstrates to use Set method(s) for setting value(s).
		// Table Aliases
        var t0 = new Products().AsQueryable();

		var query = Odb.SQL.Update(x =>
						x.From(t0)
							.Where(t0.ProductID == 1)
							.Set(t0.ProductName, "New ProductName")
							.SetRaw(t0.Price, t0.Price * 10)
							.SetNull(t0.ProductName)
					);

        using(var exc = cn.Executer()) 
            var affected_rows = exc.Sql(query).NonQuery();
    
In this sample; 2 different values are set into column "ProductName". Last value will be accepted for the column.

UPDATE t0
SET
t0.ProductName = NULL,
t0.Price = (t0.Price * 10)
FROM [Products] AS t0
WHERE (t0.ProductID = 1)
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