///<summary>This is only allowed because it's PRIVATE.</summary>
private static List <Schedule> RefreshAndFill(string command)
{
//Not a typical refreshandfill, as it contains a query.
//The GROUP_CONCAT() function returns a comma separated list of items.
//In this case, the ops column is filled with a comma separated list of
//operatories for the corresponding schedule record.
command = "SELECT s.*,"
+ DbHelper.IfNull(DbHelper.CastToChar("(SELECT " + DbHelper.GroupConcat("so.OperatoryNum") +
"FROM scheduleop so " +
"WHERE so.ScheduleNum=s.ScheduleNum " +
"GROUP BY so.ScheduleNum)"), "") + " ops " +
"FROM (" + command + ") s";
DataTable table = Db.GetTable(command);
return(ConvertTableToList(table));
}