A primary index is a unique feature of Teradata's database - it offers the benefit of an index without the traditional overhead associated with an index.
主索引是teradata数据库的惟一特性—在避免索引相关额外开销的情况下提供索引的优势。
The system determines whether it needs establishing and reserving the non-primary index by the classification of the attribute.
系统依据属性的类型决定是否要基于此属性创建非主键索引、是否要保存此非主键索引。
The morphologic and functional integrality is the primary index of the clinic utility and preservation quality evaluation of the cornea endothelium.
角膜内皮细胞形态学上的完整和功能上的健全是临床上评价角膜功能的指标，也是角膜保存质量评定的标准。
In any time, software reliability is the primary index of software quality. Software reliability evaluation consists of models, method, tools and conditions.
软件的可靠性在任何时候都是衡量软件质量的首要指标，其评估涉及模型、方法、工具和条件等方面。
The system efficiency is a primary index for evaluating pumping system. The quality of measured parameters has a great influence on the efficiency of pumping system.
系统效率是抽油机装置的主要评价指标，测量参数的质量对系统效率测算结果准确程度的影响很大。
After analyzing the characteristics of the non-primary index used to search the data in the main memory, a new non-primary index system is designed and implemented which fits to MMDB.
在分析了用于查找内存数据的非主键索引的特性之后，设计并实现了一个适合于内存数据库的非主键索引机制。
As the main part of the photoelectric tracking equipment, the tracking precision of the photoelectric tracking control system is a primary index measuring photoelectric tracking equipments.
光电跟踪控制系统是光电跟踪设备的重要组成部分，跟踪精度是衡量光电跟踪设备的主要指标。
There are two types of Primary Indexes - unique Primary Index (UPI) and Non-unique Primary Index (NUPI).
有两种主索引—惟一主索引(upi)与非惟一主索引(NUPI)。
A typical mistake in designing a Teradata Primary Index is to simply combine a number of columns to evenly distribute data across Teradata AMPs.
在设计teradata主索引时典型的错误是仅仅合并列来在TeradataAMPs中均匀地分布数据。
A typical mistake in designing a Teradata Primary Index is to simply combine a number of columns to evenly distribute data across Teradata AMPs.
在设计teradata主索引时典型的错误是仅仅合并列来在TeradataAMPs中均匀地分布数据。
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