可以用内部算法来比较新收集的统计信息与已保存的一组统计信息,并基于某些触发条件发出包含抽样的RUNSTATS。
An internal algorithm is used to compare newly collected statistics with a saved set of statistics, and RUNSTATS with sampling is issued based on certain conditions being triggered.
按照功能行为、逻辑结构与物理结构的比较及内部行为状态对这些模型进行归类,可得到有用的系统总体体系结构记录。
Categorizing these models by functional behavior, logical compared with physical structure, and internal behavior states will produce a useful record of the overall architecture for the system.
如果内部表没有索引,那么数据库服务器就会将在表上构建索引的成本与连续扫描的成本进行比较,然后选择成本最低的那一种方法。
If the inner table does not have an index, the database server will compare the cost of building an index on the table to the cost of a sequential scan, and will choose the one with the least cost.
最近一项关于未来的手机服务与新产品设想的比较研究,是从内部来源的顾客提出的,即专业的开发人员和技术专家。
A recent study of future mobile phone services compared new product ideas from customers with those put forth by "internal" sources: professional developers and technology experts.
然后项目的这一内部收益率(IRR)被与风险相近的项目的最小要求收益率进行比较。
This internal rate of return (IRR) for the project is then compared to a minimum required rate of return for projects of similar risk.
与轴流式叶轮机械比较,离心式叶轮机械内部的流动更加复杂,亟待解决的问题也更多。
In comparison with the axial turbomachinery, the internal flow in centrifugal compressors is more complex.
由于内部要素的交换,是在一定的组织权威下进行的,与市场交换相比较,具有不同的实现路径。
Since the exchange of internal elements is made under the authority of certain organization, it has a different path of realization compared with market exchange mechanism.
但虚拟企业这种组织形式是以付出协调上的努力为代价的,其边界取决于内部交易成本与外部交易成本比较。
Its cost is putting a lot of coordination and its boundary depends on the comparison between the inter transaction cost and the outer transaction cost.
其次进行中原官话的内部比较,揭示出临颍方言与八个方言代表点的亲疏远近关系。
Second, to compare the internal Zhongyuan Mandarin, revealed Linying dialect and dialects on behalf of eight points to rank the relationship.
在基于角色访问控制的基础上,利用DBMS的审计功能,将用户审计信息与实际的权限管理信息相比较,从而侦测出内部合法用户的滥用行为。
On RBAC, using the audit function of DBMS, by comparing user's audit to the authorization administration information, this System can detect user's misuse behavior to DBMS.
家庭内部环境的矛盾性、成功性、知识性分量表与对照组比较有明显差异(P<0.05);
The scores of conflict, achievement and intellectual of family inner environment between the two groups were obviously different(P< 0.05).
采用高功率射频信号内部互调失真的包络特性检测与比较技术,对射频功率带外信号进行检测和估计。
This paper describes a new high power RF amplifier's IMD signal envelope detection method and compare technology, which is used to detect and estimate the RF spectral regrowth.
因此,从内部比较与外部比较两方面进行湘方言词汇研究具有一定的必要性和重要性。
That is why it is of the necessity and importance to do the research on the two kinds of comparison mentioned above. Under the guideline of Mr.
在设计工作室内部,与手工制图过程相比较,采用CAD系统会减少重复性的工作,也会抑制至关重要的同行交流与互动。
Within the design office, the use of CAD systems may inhibit crucial peer conversations and interactions as well as limit the iterative working process when compared with the drawing process.
与安徽省内部分城市比较,目前安庆城市综合力相对较弱。
Compared with other cities of Anhui province, Anqing's comprehensive strength is relatively weak at present.
通过外部环境风研究和内部自然通风研究,比较了主楼设置屋面天窗排风口与设置东、西侧墙高位排风口的自然通风效果;
Through studying the external wind situation and internal natural ventilation of terminal 2 building, this article compared two optional types of natural ventilation effect.
土地抛荒原因固然与农业比较效益低、农业生产条件差等农业内部因素有关,也与现行的农村土地制度存在弊端有关联。
Although abandoned farmlands have stable relationships with the factors such as low pay and bad work condition, and the deficiency of country farmlands system.
结果:与SAQ比较,SF - 8量表整体上具有较好的结构效度、效标效度、分半效度、内部一致性和反应度,但部分领域的内部一致性和反应度较差。
Results: Compared with SAQ, SF-8 as a whole had very good reliability, validity and responsibility, but poor validity and responsibility existed in several domains.
在与企业内部的强制调节、市场组织的自动调节进行比较后,作者论证了网络组织是一种比市场更有效、比企业更灵活的组织生产活动的方式。
After comparing business networks with enterprise and market, the author proves that business networks is more effective than market, and it is more flexible than enterprise.
对造粒模板内部流动与传热的研究可以为模板结构的优化设计、操作条件的合理选取、模板材料的选择提供比较可靠地理论依据。
Numerical simulation provides a reliable method to optimize the design of the die, the choice of metallic material for the die, and the operating conditions of the polymer pelletizing under water.
尽管各国内部,收入与幸福关系紧密,但长期比较衡量的两国间,抑或多国间,收入与幸福似乎关系不大。
Although income and well-being were closely correlated within countries, there seemed to be little relationship between the two when measured over time or between countries.
通过设计并搭建液体二氧化碳冷冻刀实验台,获得低温冷刀内液体二氧化碳与被冻组织内部的温度信息,将其与数值模拟所得的温度分布结果进行比较,二者吻合较好;
The temperature history of liquid CO2 in probe and freezing tissue can be measured and collected. Experimental test showed good agreement with the result demonstrated that computer simulation;
通过设计并搭建液体二氧化碳冷冻刀实验台,获得低温冷刀内液体二氧化碳与被冻组织内部的温度信息,将其与数值模拟所得的温度分布结果进行比较,二者吻合较好;
The temperature history of liquid CO2 in probe and freezing tissue can be measured and collected. Experimental test showed good agreement with the result demonstrated that computer simulation;
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