// set the value of OQL.DefaultSqlBuilder once in your program

OQL.DefaultSqlBuilder = CustomSqlBuilder.SqlServer;

SelectQuery selQuery = OQL

  .Select(NW.Order)

  .From(NW.Order)

  .Where(NW.Order.ShipVia == 2)

  .OrderBy(NW.Order.CustomerID);

Console.WriteLine(selQuery);

DeleteQuery delQuery = OQL

  .DeleteFrom(NW.Order)

  .Where(NW.Order.ShipVia == 2);

Console.WriteLine(delQuery);