The DB2 9.5 optimizer USES both type of indexes to optimize the queries and help selecting the best plan for query execution.
DB 2 9.5优化器使用两种类型的索引来优化查询，并帮助选择最佳的查询执行计划。
Make sure appropriate indexes are used to minimize the rows that have to be fetched internally when selecting and joining tables.
请确保使用合适的索引，从而在选择和连接(join)表时，将必须在内部访存的行数减到最少。
The Indexes view allows you to create indexes for the table by selecting from the list of columns defined for the table.
Indexes视图允许通过从为表定义的列列表中作出选择来创建索引。
The indexes view allow you to create indexes for the table by selecting from the list of columns defined for the table.
允许您为表创建索引，只需要从为表定义的列列表中进行选择。
This paper puts forward a new method of selecting flow rate for a pump, makes new explanation of four optimum indexes in Ref.
本文提出了一种新的选择泵源流量的方法，并在此基础上对文献提出的四种优化指标进行了新的解释。
Tracing research of the earthquake activity was made in this paper using the time-space scanning by selecting the two indexes of the seismicity pattern evolution and seismology parameter change.
本文选取地震活动图像演化和地震学参数变化两项指标，采用有时间段的时空扫描进行演化研究，逐步将这种演化研究推进到短期阶段进行跟踪研究。
Accordingly, the selecting standards include contribution rate standard, growth stability standard, guiding effect standard, competition standard, which are all quantificational indexes.
相应的选择基准包括产业贡献率基准、产业增长稳定性基准、产业带动效应基准、产业竞争力基准等四项。
Gas field development level at present in China was analyzed by way of selecting several principal development indexes indicating the level.
择取反映气田开发水平的几个主要指标分析了中国气田的开发水平现状。
Then the system establishing includes three parts: selecting indexes, confirming weights and integrated grade.
体系构建从指标选取、权重确定和综合评分三方面展开。
This paper applied the theory of partial regression square sum into selecting the main prediction indexes which influence the coal demand.
将偏回归平方和理论运用到影响煤炭需求量预测指标的选取中，确定了影响煤炭需求量预测的主要指标。
Finally this paper also study the risk-indicate mechanism by selecting some indexes from the macroeconomic and the microcosmic lays.
最后，试从宏观、微观层面上用几种主要的指标建立风险预警机制。
Finally this paper also study the risk-indicate mechanism by selecting some indexes from the macroeconomic and the microcosmic lays.
最后，试从宏观、微观层面上用几种主要的指标建立风险预警机制。
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