This approach, called "query-based statistics" can be quite resource-intensive.
这种方法称为“基于查询的统计”，可能会占用较多资源。
The CEA, the European insurance federation, said the verdict was "bad news," arguing that the use of evidence-based statistics was "indispensable in actuarial science."
欧洲保险联盟(European insurance federation)称该判决是一个“坏消息”，他们辩解称采用事实统计数据是“保险精算学必不可少的一环”。
"The CEA, the European insurance federation, said the verdict was" bad news, "arguing that the use of evidence-based statistics was" indispensable in actuarial science.
欧洲保险联盟(European insurance federation)称该判决是一个“坏消息”，他们辩解称采用事实统计数据是“保险精算学必不可少的一环”。
Activity-based costing(ABC)is an important concept in Management Accounting, and the same is true with input-output analysis in Statistics.
正如作业成本是管理会计学中的重要概念，投入产出分析也是统计学中的重要概念。
As the calculation of the savings is based just on statistics information in the system catalog, the calculation is fast.
由于对节省空间的计算只基于系统编目中的统计信息，所以这种计算速度很快。
Nassim Nicholas Taleb: the field of statistics is based on something called the law of large Numbers: as you increase your sample size, no single observation is going to hurt you.
塔勒布：统计学学科的基础建立在所谓大量数字的规则性上：只要你增大样本容量，没有任何单个的观测结果能损害到你的理论。
Based on the new statistics, the world Bank earlier this week said China's and India's economies were smaller than previously estimated, and their share of the world economic might diminished.
根据新的统计数字，世界银行本周早些时候说，中国和印度的经济规模没有以前估计的那么大，它们在全球经济产出中所占的比例可能也要相应下调。
It then USES its parent request to find the right database statistics based on the connection's description, and to find statement statistics based on the SQL key string.
然后它用它的双亲请求，根据连接的描述找到正确的数据库统计值，并根据sql键字符串找到语句统计值。
The screen shows the databases and the tables requiring refresh of the statistics based on the previous evaluation done by AUS.
此屏幕显示数据库和表，需要按照AUS所做的前一次评估刷新它们的统计数据。
How do the companies ensure that their genotyping is accurate and their risk predictions are based on solid genetic and epidemiological statistics?
这些公司怎样保证基因分型结果的准确性？又怎样保证风险预测的结果建立在实实在在的遗传和流行病学统计数据上？
Though based largely on Cold War-era statistics, the findings are newly relevant, according to study co-author Scherb.
尽管这项研究的大部分数据是冷战时期的统计数字，但结果却是和现在的情况息息相关的。研究的作者之一scherb说。
It estimates the execution cost of each potential access plan based on the statistics data stored in catalog and statistics tables, and selects the one with the lowest cost.
它会基于存储在目录和统计表中的统计数据而评估每一个可能的存取计划的执行开销，然后选择最低开销的存取计划。
Since each index (fragment) has its own UDI counter, the decision to skip or rebuild index statistics is done based on how much the index (fragment) has changed.
由于每个索引(片段)都有自己的udi计数器，因此将根据索引(片段)的修改程度判断是否跳过或是重建索引统计。
But deciding to relocate based on statistics is not advisable.
但是根据这些统计数据去搬迁并非明智之举。
The filter factors calculated based on the available quantile statistics are not exact, but the estimate error is below 5%, even when only 20 values are collected.
根据已有的分位数统计信息计算出来的过滤因子不是很精确，但即使只收集20个值，其误差仍然低于5%。
The implementation of advanced query statistics is based on the query log database technology.
高级查询统计的实现是基于查询日志数据库技术。
As you've seen in the steps above, the optimizer selects the optimal access plan based on available statistics.
您可以从以上步骤看到，这个优化器基于可用的统计信息选择了最优的存取计划。
Each entry in the STMM log records the statistics collected before making a tuning decision and the actions performed based on those statistics.
STMM日志中的每个日志项记录在做出调优决策之前收集的统计数据，以及根据这些统计数据执行的操作。
World health statistics 2008 is based on data collected from WHO's 193 Member States.
《2008年世界卫生统计》基于世卫组织193个会员国提供的数据。
While WHO measures case detection principally with reference to smear-positive disease, statistics for detection based on other diagnostic methods give a different view of programme performance.
尽管世界卫生组织测量病例检出主要参考痰检阳性病例，但是根据其它诊断方法对病例检出的统计却显示了规划执行的不同情况。
Accurate index information and statistics are fundamental to cost-based decisions in the query optimizer.
准确的索引信息和统计信息是查询优化器中基于成本的决策的基础。
These algorithms take into account load statistics based on the number of currently outstanding I/O operations of the server adapters in selecting the next path for an I/O operation.
根据在为I/O操作选择下一个路径时服务器适配器当前杰出 I/O操作的数量，这些算法会考虑到加载统计数据。
The optimizer calculates its cardinality estimate — that is, the estimated number of rows returned by the query — based on the statistics available.
优化器根据可用的统计信息计算基数的估计值，即预计查询返回的行数。
The survey was based on Land Registry sale price statistics and updated with valuation data gathered from surveyors.
这项调查是基于土地注册处发格统计表而得出，随调查者收集计价数据手机而进行更新。
But since that is based on 2001 statistics the true figure is probably far higher.
但这是根据2001年的数据估计的，实际数字可能要高得多。
Note that recommendations for changing queries are based on the assumption that the DB2 catalog statistics are accurate.
注意，修改查询的建议基于DB 2编目统计数据是准确的这一假设。
First, more statistics are retrieved by the catalog-based method for some relational sources than in previous releases.
首先，对于一些关系数据源，通过基于编目的方法可以比之前的版本获取更多的统计信息。
The country's social divisions, however, are much more complicated than statistics suggest, involving lots of fine-grained, identity-based prejudices.
但是这个国家的社会分化远比数据表现出来的复杂，其中包含了很多微妙的、关于身份的偏见。
Based on energy consumption statistics from various nations, scientists estimate that global CO2 emissions dropped by 1.3 percent in 2009.
根据各国的能源消耗数据，科学家估算出全球的CO2排放量比2009年下降了1.3个百分点。
If current statistics are not available, the optimizer may choose an inefficient access plan based on inaccurate default statistics.
如果无法获得当前的统计数据，优化器就可能会基于不准确的默认统计数据选择低效的访问计划。
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