索引的

Bitmap indexes include rows that have NULL values, unlike most other types of indexes. Indexing of nulls can be useful for some types of SQL statements, such as queries with the aggregate function COUNT.SELECT COUNT FROM employees

对于select count from tab，全表扫描比使用索引效率要高，经过分析的表cbo会倾向于使用索引，这是oracle软件的判断问题，最好还是不要收集统计信息，让oracle执行全表扫描。

Although the use of the index operator is more commonly associated with accessing array elements, when used with objects, the index is always the property name expressed as a string literal.

虽然访问数组元素索引操作符的使用更平常，但是当使用对象，索引总是一个表示字面意思的属性名。

But original keyword index graduates in still staying in 2 to search engine. Google very give face a week with respect to the index cutout before, the search graduates this keyword does not appear this domain name.

但是本来的要害词索引"毕业啦"都还留在2个搜索引擎中。google很给面子一个星期就把以前的索引删了，搜索毕业啦这个要害词就不出现这个域名了。

Labeled events graph and termination analysis algorithm are presented, which are illustrated by an example. A hybrid indexing method, the HRlink-tree, is proposed, based on which an improved bottom-up update algorithm is presented.

在并发索引结构Rlink树基础上，提出一种支持空间数据库主动规则频繁更新的混合索引结构HRlink树及改进的自底向上更新算法IBUU。

So it is shown that,this paper uses mass router information as researching object,gives the data regular matching algorithm.It is idea not only in the time of index searching but also in the index information storage space.It is used in the method of mass information fast regular matching in embedding software system widely.

由此可见，以海量路由信息为研究对象，给出的数字正则匹配算法，不仅在索引搜索时间上而且在索引信息存储空间上都十分理想，可广泛应用于嵌入式软件系统中的海量信息快速正则匹配。

A first index identifying a first speech parameter template (614) corresponding to a first speech spectral parameter vector (604) of the sequence of speech spectral parameter vectors is transmitted.

发送一个第一索引，该索引标识一个对应于话音频谱参数向量序列中的一个第一话音频谱参数向量（604）的第一话音参数模板（614）。

Index for the pixels between two images, the index values of different ratio of total image size.

为两幅图像之间像素索引不同的索引值占图像大小的比例。

And why it is that writers write but fingers don't fing,grocers don't groce and hammers don't ham If the plural of tooth is teeth,why isn't the plural of booth beeth If you have one goose,two geese,why not one moose,two meese,or one index,two indices

如果牙齿的复数是teeth，那为什么售货亭的复数不是beeth？一只鹅我们用goose，两只鹅用geese，那么，一只驼鹿用moose，两只驼鹿就应该是meese了？为什么一条索引是index，两条索引却成了indices？

IND_COL as the column is nullable as we may miss some rows.

IND_COL 上的索引，因为可空列的索引会使我们丢掉一些记录。

The calligraphic character is firstly skeletonized with morphology fused index table skeletonization method, in which the character is thinned by an index table and then thinned with mathematic morphology method.

首先用融合数学形态学的索引表骨架提取方法获取骨架，即先使用索引表对书法字进行初步细化，再用数学形态学的方法细化得到骨架。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐