而页级的抽样则可以显著减少 I/O,因为它只读取一定百分比的数据页。
Page level sampling reduces I/O significantly since it reads only a percentage of the data pages.
基本要求是高层次的并区分优先级(以在低优先级的项目上获得一定的灵活性)。
Requirements are baselined at a high level and prioritized (to gain scope flexibility with low priority items).
在假日期间,两人聚首,一定程度上是因为市场对意大利发起攻击后接着对法国(核心的AAA -级欧元区成员国)发动攻击了。
The two came together in the holiday season partly because the markets had moved on from an assault on Italy to attack France, a core AAA-rated euro member.
It is certainly possible, for example, that a quadratic algorithm could run faster than a linear algorithm. It depends on what the input is, it depends on, you know, what the particular cases are. So it is not the case that, on every input, a linear algorithm is always going to be better than a quadratic algorithm.
一个二次平方级复杂度的算法,当然也是可能跑的比线性复杂度算法快的,这取决于,你知道的,输入以及特定的案例,因此并不是对于每个输入,线性复杂度就一定会,比二次平方级复杂度的算法的表现要好,只是通常来说是这样的。
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