public void ExceptAllTest()
{
SqlSelect s1 = SqlDml.Select(SqlDml.TableRef(Catalog.DefaultSchema.Tables["Address"]));
s1.Columns.Add(SqlDml.Asterisk);
SqlSelect s2 = SqlDml.Select(SqlDml.TableRef(Catalog.DefaultSchema.Tables["Address"]));
s2.Columns.Add(SqlDml.Asterisk);
SqlSelect s3 = SqlDml.Select(SqlDml.TableRef(Catalog.DefaultSchema.Tables["Address"]));
s3.Columns.Add(SqlDml.Asterisk);
Console.WriteLine(SqlDriver.Compile(s1.ExceptAll(s2)).GetCommandText());
Console.WriteLine(SqlDriver.Compile(s1.ExceptAll(s2).ExceptAll(s3)).GetCommandText());
Console.WriteLine(SqlDriver.Compile(s1.ExceptAll(s2.ExceptAll(s3))).GetCommandText());
Console.WriteLine(SqlDriver.Compile(SqlDml.ExceptAll(s1, s2)).GetCommandText());
Console.WriteLine(SqlDriver.Compile(SqlDml.ExceptAll(s1, s1.ExceptAll(s2))).GetCommandText());
Console.WriteLine(SqlDriver.Compile(SqlDml.ExceptAll(s1.ExceptAll(s2), s1)).GetCommandText());
Console.WriteLine(SqlDriver.Compile(SqlDml.ExceptAll(s1.ExceptAll(s2), s1.ExceptAll(s2))).GetCommandText());
}