使用scn查询更加准确,因为scn对应的timestamp是时间的一个区间,scn对应一段区间值,并且在低版本 中timestamp和scn的值是每隔5分钟才真正映射到 smon_scn_time表中的,所以在闪回查询中尽量使用基于scn的闪回查询。 使用SCN查询会比TIMESTAMP更加精确,事实上,即使执行Flashback Query时指定的是AS OF TIMESTAMP,Oracle...
aInstead, the commercialization function of patent law should be decoupled from the invention function. 反而,应该从发明作用分离专利法的商品化作用。[translate] aestimative region in which a normal node resides. An[translate] aREFUSE THE OFFER 拒绝提议[translate] ...
leetcode 352. Data Stream as Disjoint Intervals 区间合并 Given a data stream input of non-negative integers a1, a2, …, an, …, summarize the numbers seen so far as a list of disjoint intervals. For example, suppose the integers from the data stream are 1, 3, 7, 2, 6, …, then ...
aInterval mathematics have arisen as a method of taking into account the errors of calculations by constructing an interval estimate for the exact solution of a problem. 间隔时间数学出现了作为考虑到演算错误方法通过修建间隔时间估计为问题的确切的解答。[translate]...
Comparisons were drawn between the development of television in the 20th century and the diffusion of printing in the 15th and 16th centuries. Yet much had happened 1 . As was discussed before, it... A. indeed B. hence C. however D. therefore 查看完整题目与答案 The...
B. The shape of the valve flaps is a half ring. C. The valve flaps have a shape of half circle. 查看完整题目与答案 Saturate(湿透,浸透) the element for two hours. A. Soak the element for two hours. B. Wet the element for two hours. C. Stove the element for two h...
If you spend $ 100 or more in our stores you will receive six hours of free parking. When you have spent $100 or more, just take this coupon and your receipt to the customer service desk on level 4. They will stamp your parking ticket to allow 6 hours of free parking.Offer here ...
aExcept so far as otherwise expressly stated,this documentary credit is subject to the Uniform Customs and Practice for Ducumentary Credits 1933 Revision International Chamber of Commerce Publication NO.500. 除了,至于否则明确地陈述,这跟单信用是受Ducumentary信用1933年修正国际商会的一致的风俗和实践支配...
aIt is regret that I haven't receive any information from your side. May I have your idea about our offer? We will try to satisfy you upon receipt of your reply. As we don't want to lost a good customer like you! 它是我安排从您的边不获得任何信息的遗憾。 我可以有您的想法关于我们...
整变频产品能力能效，如压缩机频率、风机转速、膨胀阀阀步等参数,使综合能效达到最优。关键字：季节能效；CSPF；HSPF；低温制冷；低温制热 Analysis on the influencing factors of seasonal energy efficiency in AS/NZS 3823.4-2014 standard WEI HuaFeng QIN Xian WU Jun AUX Air conditioner Co., Ltd. ...