1. 按计划：按计划(OnSchedule):通过SQL Agent的作业来调用策略对目标对象进行检查. 虽然PBM有以上四种执行模式,但是归总起来其实是两大种,一种是基于SQL Agent作业方式的OnSchedule模式,而另外一种是基于Event机制的On Change模式.
2. 按时间表,准时：on sale 出售,廉价出售 |onschedule 按时间表,准时 |on second thoughts 经重新考虑
3.
3. 按预定时间：on sale 上市的;减价;贱卖 |onschedule 按预定时间 |onschedule 按照预定时间,准时
4. on schedule
4. 按照预定时间,准时：onschedule 按预定时间 |onschedule 按照预定时间,准时 |on second thoughts 经重新考虑后
那架飞机应该会按预定时间降落。
Barring strong headwinds, the plane will arrive on schedule.如果不是猛烈的顶头风, 飞机会准点到达的.
The negotiation will begin on schedule.谈判按期举行.
The train arrived on schedule.火车准时到达.
The goods arrived on schedule.货物已如期运到.
They had struck the island at dawn, on schedule.他们已按战斗日程在拂晓时分袭击了这个岛屿.
He had checked into the dilapidated Bayamo Hotel on schedule.他按时住进了破旧的贝阿莫旅社.
Each of the Saturn's three stages was fired on schedule.土星火箭的三节,每节都按时发动了.
By late November the weapons had arrived on schedule.11月底,这种武器按期运到了.
He could have finished it on schedule, but somehow he fell behind.他原本能按预定进度做完这件事的, 但不知怎地却落后了.
The plane's departure was on schedule.飞机准时起飞.
The conference convened on schedule.会议照予定程序举行.
Most quantitative restrictions had been removed on schedule.数量限制大都按期予以撤消.
Trains run on schedule without mishap.列车运行安全正点.
Barring special circumstances, the plane will arrive on schedule.如无特殊情况, 飞机将准时到达.
Reconditioning quality of train directly affects its running safely and on schedule.车辆检修质量直接影响列车的正点、安全运行.
