Following section demonstrates <b>regular update</b> with model of table.
<sample>
	<pre lang="c#">
		// Table Aliases
        var t0 = new Orders().AsQueryable();

		// Updates the entire row with values which are NOT Null if the fields are nullable.
		var order = new Orders();
			order.OrderDate = DateTime.Now.AddDays(1);
		
		var query = Odb.SQL.Update(x =>
						x.From(t0)
							.Where( t0.OrderID == 10248 )
							.SetModel(order)
					);

        using(var exc = cn.Executer()) 
            var affected_rows = exc.Sql(query).NonQuery();
    </pre>
    <output>
        UPDATE t0<br />
        <hlb>SET t0.OrderDate='2020-06-20 10:00:00' </hlb><br />
        FROM [Orders] AS t0<br />
        WHERE t0.OrderID == 10248
    </output>
	<fiddle>Ix5dj8</fiddle>
</sample>