提出了一种新的用于估算查询结果大小的直方图方法。
In this paper, a new histogram method for the size estimation of query result is presented.
直方图是许多商用数据库系统中最常用的一种估算查询结果大小的方法。
Histogram is the common method for size estimation of query result in many commercial database systems.
当接收到的请求数量适中,而来自多个异类互补数据源的结果大小有限时,可最佳地利用数据联合的优势。
The advantage of data federation is best exploited when a modest number of requests are received against limited result sets sized from multiple consistent, complementary data sources.
设计了用直方图估计选择运算与连接运算结果大小的算法,进行了相应的实验,并提出下一步工作的思路。
Algorithms of estimating the sizes of query results of selection operations and join operations are designed, and corresponding experiments are implemented, and a clue of further research is given.
他建议把7岁儿童的班级大小和考试结果相关联。
He suggested a link between class size and test results of seven-year-olds.
基数估计是这样一种过程:在应用了谓词或执行了聚集之后,优化器使用统计信息确定部分查询结果的大小。
Cardinality estimation is a process by which the optimizer USES statistics to determine the size of partial query results after predicates are applied or aggregation is performed.
列出分析结果、堆内容、大小和增长的摘要。
List a summary of analysis results, heap contents, size, and growth.
图8显示了结果,其中流程图已减小到最小大小。
Figure 8 shows the results, with the diagram reduced to the minimum size.
为了得到接近实际的的结果,你一般需要什么样大小的样本?
What kind of sample size do you need to generally get close to that actual?
当然,由于一些因素,例如邮件文件大小、用户负载等等,结果会有所不同。
Of course, results will vary depending on factors such as mail file sizes, and user load, and so on.
请注意,该数字涉及到结果的潜在大小,这是通过将每个维度上包含的所有成员乘以其他维度的所有成员计算得出的。
Please note that this number relates to the potential size of the result which is calculated by multiplying all included members from each dimension by all members of the other dimensions.
模板的大小会使得结果难于被理解,因此几乎难以维护(或者调整)。
The size of the template would render the results hard to understand and consequently almost impossible to maintain (or debug).
当参与者发现他们的回答结果和他们的奖励大小时,研究者们测试了他们大脑中所谓的积极的预测错误信号。
Researchers measured so-called positive prediction error signals in the participants' brains as the participants discovered the results of their answers and the size of their rewards.
每个搜索结果条目包含页面标题、大小、字数、名称空间(稍后详细介绍)、以及页面内容的片段。
Each search result entry contains the page title, size, word count, namespace (more on this later), and a snippet of page content.
这一结果表明,大小从与地球相仿到四倍于地球(又称为“超级地球”)的所有行星,总数可能比以前想象中要多得多。
In total, the results suggest that planets ranging from Earth-sized to about four times Earth's size - so-called "super-Earths" - may be more common than previously thought.
结果显示不同大小的网络针对不同的问题有很好的效果。
The results showed that different network sizes worked better for different problems.
从门户服务器的角度来看,最重要的部分是包含结果标记的html页面的大小。
From a portal server point of view, the most important part is the size of the HTML page containing the resulting markup.
结果他们看到树突棘的大小和数量稳步下降,而树突棘正是新细胞的微小的分支,可以用来接收临近细胞的信息。
And what they saw is a steady decrease in the size and number of dendritic spines, the tiny branches of the nerve cell that receive messages from nearby cells.
他们发现,如果把矩阵的每一项都写在一平方英尺纸上的话,整个计算结果足可以覆盖曼哈顿大小的地方。
They worked outthat if each entry in the matrix were written on paper that was one inchsquare, the answer would cover an area the size of Manhattan.
根据查询的复杂性和结果集的大小,刷新操作可能需要很长时间。
Depending on the complexity of the query and the size of the result set, the refresh operation may take a long time.
通过更改客户机的输入参数(用于更改请求所使用的查询范围),可以轻松地测试不同的结果消息大小。
By changing the input parameters to the client (which in turn change the query ranges used for requests), it's possible to test different result message sizes easily.
从上面的输出结果中您可以确定,需要至少4GB大小的新的分区。
From the above, you can determine that you need a new partition that is at least 4gb in size.
显示的数据包括发出请求的时间、装载所用的时间、大小和结果。
Various data are displayed, such as the time the request started, how long it took to load, the size, and the results.
表1详细描述了根据该文件中提供的测试结果而建议的服务器大小。
Table 1 details server sizing Suggestions extrapolated from the test results provided in this document.
此值不是所得到的条目数,而是指示结果缓存大小的值。
The value is not a number of resulting entries, but more of an indicator of how big the cache size for the results should be.
最妙的部分来了:据亚历克斯·贝洛所说,佛陀的计算结果一个原子的大小与实际非常接近!
So here's the neat part: According to Alex Bellos, it turns out the Buddha's calculation got the size of an atom very close to right!
这些包括一个结果集的密度、一个结果集的大小、执行MDX所需的时间,等等。
These include the density of a result set, size of a result set, amount of time taken to execute the MDX, etc.
如果结果的潜在大小超出此限制,IBMCognos将不会缓存数据结果。
Should the potential size of the result exceed this limit, then IBM Cognos will not be caching the data results.
安排中水平相对于垂直通常较小的文件大小中的结果Sprite图像。
Arranging the images in the Sprite horizontally as opposed to vertically usually results in a smaller file size.
Google工程师宣称BigTable中数据查询的响应时间只根据结果数据集的大小确定。
Google engineers claim that the response time of data queries in BigTable is only determined by the size of the result dataset.
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