From the performance perspective, this is considered a very efficient join operation, because the cost for scanning the inner table is optimal via unique access through a unique index.
从性能的角度来看，这被认为是一个非常有效的联接操作，因为通过贯穿唯一索引的唯一访问扫描内部表的成本是最优的。
In addition, when it is used, the error index must be reset to -1 before each parse operation; otherwise the result can be misleading.
另外，使用它时，在每次解析操作前必须将错误索引重置为- 1；否则结果将可能产生误导。
These counters are incremented by the respective DML operation occurring on the partition, both table and index partitions.
这些计数器由表和索引分区中发生的各个DML操作实现值累加。
For the slow alter, alter fragment, or clustered index creation operations, the alter operation replay position is moved to the current log position before performing the operation.
对于slowalter、alter fragment或集群索引创建操作，在执行alter操作之前，alter操作的重放位置被移动到当前的日志位置。
It says that the function must be used in an expression involving the comparison operation and that the search method "equals" of the index extension hash_index is referred to.
这说明，该函数必须在一个涉及比较操作并且引用了索引扩展hash _ index的搜索方法“equals”的表达式中使用。
The researchers, who reviewed nine studies published between 1970 and 2009, found increased weight and body mass index (BMI) could be seen for up to seven years after the operation.
研究员回顾了1970至2009年期间的9项研究，发现手术后体重和体质指数增加长达七年时间。
In this way, you can balance the resources that are used by index operation with those of the concurrent users.
通过这种方式，可以在那些并发用户间平衡索引操作所使用的资源。
Selectivity: When the query optimizer (QO) studies your SQL, the degree of selectivity determines if an index should be used to perform the operation.
选择性：当查询优化器(query optimizer，即QO)读取SQL时，选择性的程度决定了索引是否应该用来执行该操作。
A guideline to force the optimizer to choose the index oring operation to access the EMPLOYEE table.
另一个原则是迫使优化器选择索引“或”操作来访问employee表。
In the thesis we only count the failure that leads the transformer to quit operation, regarding the transformer as Non-repairable system whose main index is failure rate.
本文只统计造成变压器必须退出运行的故障，研究这类失效应把变压器看成是不可修复系统，其最主要的指标是失效率。
So the authors devised an index of narcissism using six publicly available indicators obtainable without the co-operation of the boss.
因此，作者应用6种无需老板合作、通过公众渠道获取的指征，制定了一个自恋症状目录。
The thesis only counts the failure that leads the transformer to quit operation, regarding the transformer as Non-repairable system whose main index is failure rate.
本文只统计造成变压器必须退出运行的故障，研究这类失效应把变压器看成是不可修复系统，其最主要的指标是失效率。
Evaluation index system of passenger train operation plan is the basis for evaluating and optimizing passenger train plan.
旅客列车开行方案评价指标体系是评价和优化开行方案的基础。
If the user does not have access to the document in question, then an error displays when the agent runs (for example, "Entry not found in index" or "Unauthorized to attempt that operation").
如果用户没有所讨论文档的访问权限，那么在代理工作时将显示错误(例如，“Entrynotfoundinindex”或“Unauthorized to attempt that operation”)。
Under certain conditions of raw material and equipment, the reasonable operation system plays an important role in increasing technical and economical index of BF.
在原燃料和装备水平一定的条件下，合理的操作制度对高炉的技术经济指标起到决定性的作用。
Raw materials for producing tipping base paper, quality index, the production process and operation method, and equipment performance of paper machine are four respects of the influence factors.
生产水松原纸所使用的原料、纸张的质量指标、生产工艺和操作方法、纸机的装备性能是影响因素的四个方面。
Economy index is a method concisely describing the operation situation of economy system and estimating the characteristics of knowledge economy.
经济指标是简明描述经济体系运作情况的方法，对知识经济特性的测度也不例外。
The technical index and operation procedure of the cadmium-copper column reduction in two China National Specifications were compared in this paper.
本文比较了硝酸盐测定的铜镉柱还原法在两个规范中技术指标和操作工艺的差异。
Mouse operation, seen smoking on the mice which point, if the air pollution index too high, it is necessary to open ventilation windows.
鼠标操作，看到老鼠吸烟就点它，如果空气污染指数过高，要点击窗户打开通风。
The operation practice of the engineering project show good control and economic performance index are achieved and significant economic benefit is achieved.
工程项目运行实践表明，该系统取得优越的控制性能和经济性能指标，取得了显著的经济效益。
Visual objects (VOs) abstraction is the basic step for all kinds of operation, such as index, accessing, which are based on VOs.
视频对象的提取是任何基于视频对象的操作如索引、访问等的最基本的步骤。
Purchasing cost is an important index of reflecting the level of operation and management and a key factor of deter-mining the prices of products of state-owned automobile enterprise.
采购成本是反映企业生产经营管理水平的重要指标，是决定国有汽车企业产品成本和产品价格高低的关键因素。
The result of long-term operation shows that this system can complete test task, and reaches the required property index.
长期运行的结果表明，该系统能够完成测试任务，并达到要求的性能指标。
As result of backward equipment and wrong operation, the forecast results become unreliable when the index of drilling yields is used in forecasting coal or rock outburst.
用钻屑量指标预测煤与瓦斯突出时，由于采样装置落后和操作不规范等原因，导致预测结果可靠性降低。
Under the environment of power market, available transfer capability (atc) is an important technology index and market signal for the dispatcher in the operation of inter-connected power system.
在电力市场环境下，有效输电能力(atc)是调度员进行区域间联网互供运行操作的一个重要技术指标和市场信号。
For finding the relationship of operation conditions and index of quality, support vector machine is used for modeling the PET conglutination.
为了找出PET产品的聚酯粘度检测的操作条件与质量指标之间的关系，采用支持向量机对聚酯粘度进行软测量建模。
Results indicate that the model incorporates demand uncertainties using customer service flexibility index and can evaluate SC 'operation more comprehensively.
结果表明该模型采用服务柔性指标反映了顾客需求的不确定性，能够更综合地评价供应链的运作效果。
This study indicated that FISH technique should be used in explaining the bacteria phase of highly concentrated anaerobic degraded sludge as an index for operation control of the treating system.
研究表明，FISH法可用于高浓度厌氧消化污泥的菌相解析，作为处理系统运行管理指标使用。
The experimental test results show that this biomass gasifier has better biomass adaptability and steady and reliable operation. Its index reaches the design requirements.
实验测试结果表明：该气化机组原料适应性强，运行稳定可靠，各项指标均达到设计要求。
In Touch Hider, any hide or unhide operation on a file will add one index in the Hider index.
在触摸藏起来，任何隐藏或取消隐藏文件操作上会增加一个索引指数在藏起来。
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