Sybase数据库中在SQL中嵌套简单逻辑判断
select * from ZL_TRAIN_TIME_TAB order by Fld_TrainTime_StartTime_Int,主要是下面这句：意思是，当Fld_TrainTime_StartTime等于----时候，就把值当作9999来处理case Fld_TrainTime_StartTime when ---- then 9999 else Fld_TrainT
