SqlServerDatabaseProvider prov = new SqlServerDatabaseProvider ();
prov.ConnectionString = "...";
DatabaseSchema database = prov.LoadDatabaseSchema ();

foreach (Table table in database.Tables)
{
 Select select = new Select (table.Provider.Dialect);
 select += table;
 select += Operators.Or (Operators.Equal ("d", "100 Norte"), Operators.NotEqual ("g", "1"));
 var finalsql = select.GetSql ();
}