Access path selection: What did DB2 decide, and why?
选择访问路径：DB 2做出什么决策？为什么？
Before access path selection, the DB2 optimizer transforms SQL statements into forms that are semantically identical, such as by using predicate pushdown or predicate transitive closure.
在选择访问路径之前，DB 2优化器将sql语句转换成语意上一致的形式，例如使用谓词下推或谓词传递闭包。
The SQL statement itself also impacts the access path selection.
sql语句本身也会影响访问路径选择。
Index design has a critical impact on access path selection.
索引设计对访问路径选择至关重要。
Once you've dragged out your path, select the Pen Tool (p), right-click inside the rectangle, and then choose to Make Selection.
路径画好之后，选择钢笔工具(P)，右击矩形内部，选择建立选区。
Natural selection can achieve many things, but it is hemmed in. Even harmless, random mutations can block its path.
自然选择可以实现很多东西，它还是会受到一定的束缚，即使是无害的，随机的突变都会阻碍进化的途径。
Pick the Direct Selection Tool and click on the shape path. Click the vertical point and drag it down while holding the Shift key until it reaches the same level with the horizontal axis.
用直接选取工具单击这个图形的路径，单击垂直点然后按住shif t键往下拉直到如图所示状态。现在看起来不错了，但是还是比较简陋。
In the Web 1.0 world, shopping sites streamlined their user experience by constructing a straight path from search and results through selection and purchase.
在Web 1.0世界，购物站点通过构造一条流畅的路径(从搜索和结果到选择和购买)流线化用户体验。
In that case, reorganizing the index might lead to its selection as part of a better-performing query access path.
在这种情况下，重新组织索引可能会影响DB2的选择，可能产生性能更好的查询访问路径。
Other considerations for access path selection.
选择访问路径的其他影响因素。
SDDPCM allows for dynamic selection of path selection algorithm options, while the AIXPCM requires each hdisk be reconfigured for a new path selection algorithm to take affect.
SDDPCM支持路径选择算法选项的动态选择，而AIXPCM需要为新路径选择算法重新配置每个hdisk才能生效。
You can do this by selecting the bottom path point with the Direct Selection Tool (A) and drag the point upwards.
你可以做到这一点，选择底部的路径点，与直接选择工具（a ）和拖曳点向上。
Select the bottom path point with the Direct Selection Tool and lengthen the pin.
选择底部的路径点，与直接选择工具和延长针。
Statistics advisor: recommendations for collecting the required statistics to facilitate access path selection.
统计数据advisor工具：收集所需统计数据以完成访问路径的建议。
In the procedure of path decomposition and query plan selection, target node in the query tree is utilized to avoid the transfer of the intermediate results.
在路径分解和查询计划选择的过程中，利用查询树中的目标节点来避免中间结果的传递。
Pick the Direct Selection Tool, right click the path you've just created, and choose Stroke path.
选择直接选择工具，右键单击刚刚创建的路径，选择描边路径。
In plan optimization module, the access path selection and the account method of cost evaluation are discussed in detail.
在计划优化模块中，详细讨论了存取路径的选择和代价评估的计算方法。
So it is effective on optimizing the path selection of wireless mesh network based on 802.11 and improving the performance of network .
因此，该参数对于优化基于802.11的无线网格网的路径选择，提高网络性能是行之有效的。
Research the effect of the different kinds of vehicle in path selection, the analysis of vehicle differential benefit and toll coefficient.
重点研究收费标准对各车型路径选择的影响，收费公路级差效益分析和收费系数的分析。
Abstract: Starting from clarifying the evolution path of contract valuation form, this paper gives an analysis on mechanism of contract valuation form selection.
从梳理建设工程合同计价形态的一般演化路径入手，对建设工程合同计价形态选择的内在机理进行剖析。
Under threshold based link state update policy, this algorithm presents a new path - selection function which combines the safety and cost of a path.
基于非精确网络下门限更新策略，提出一种将安全性和组播树代价相结合的路径选择函数。
In this paper, first the query technology on database is analysed, then two optimization methods are offered: the disintegration query and the best access path selection.
本文对数据库的查询技术进行分析，给出两种优化方法：分解查询和选择最优存取路径。
Just put the. CHD files in the CHD folder in the main directory (sorry, no path selection for it).
把。chd文件放到主目录下的chd文件夹中(抱歉暂时不能选择路径)。
It presented the determinate principle and the selection points of machine path, so that to ensure the machining quantity and to raise the production efficiency in nc machining.
提出数控加工中加工路线的确定原则和选择要点，以保证加工质量与提高生产效率。
A routing path selection algorithm selects the routing path with lower flow and less number of intermediate nodes. OFRA can distribute routing paths more evenly.
路径选择理论则选择拥有较低流量以及较少中继点的路径最为传输的路径。
We found the essence of path analysis of selection index is analysis of correlative heritability between traits and aggregate genotype.
通过分析得出选择指数的通径分析的实质是选择性状与复合育种值的相关遗传力分解。
Navigation of mobile robot involves path planning, sensor selection and multisensor fusion, etc.
移动机器人导航涉及到路径规划，传感器的选择及传感器信息的融合等技术。
But the existence of noise funneling in the return path of cable network in HFC system restricts the selection of modulation techniques for the return path.
但HFC网络中同轴电缆网络上行信道中存在的噪声漏斗效应限制了上行信道调制技术的选择。
Abstract: Starting from clarifying the evolution path of contract valuation form, this paper gives an analysis on mechanism of contract valuation form selection.
[摘要]从梳理建设工程合同计价形态的一般演化路径入手，对建设工程合同计价形态选择的内在机理进行剖析。
Abstract: Starting from clarifying the evolution path of contract valuation form, this paper gives an analysis on mechanism of contract valuation form selection.
[摘要]从梳理建设工程合同计价形态的一般演化路径入手，对建设工程合同计价形态选择的内在机理进行剖析。
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