Finally, in order to improve the efficiency and accelerate the retrieval process, we give some insight into relevant image database index mechanism. Especially, we discuss thoroughly about M-Tree index mechanism, which we applied in our CBIR system.

There are many kinds of database index, such as B+-tree, AVL tree and SB-tree, which are built now, but through which we could not to search data on many keys.

目前数据库索引方法比较多，包括B+-树、AVL树和SB-树等，但都不能很好地解决数据库的多键值查询问题。

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The author uses the mechanism of map symbol database index plus symbol description information buffer to prove the efficiency of accessing symbol description information in multiple map symbol databases;

文中采用地图符号库索引加缓存符号描述信息的机制，提高了访问多地图符号库中描述信息的速度；

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Note that this is usually not the only attribute with a database index.

注意，通常情况下，CSCDISIS属性并不是惟一有数据库索引的属性。

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Access of Database with Index by High-Level Language

高级语言访问带索引数据库的方法

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The system take R-tree as spatial database index structure, integrated the technique of multimedia and built workflow business process model and de-cision support model.

系统以R-树作为空间数据库的索引结构，综合采用多媒体技术，并建立相应的工作流业务过程模型和决策支持模型。

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Based on the studies of super-high concurrency of B~ ( link)-tree, a novel scheme that combined B~ ( link)-tree-based database index with multiversion technology was provided.

在对B链树极高同步性能研究的基础上，提出了一种将B链树作为数据库索引并和多版本技术相接合的一种新颖方案。

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Searching in the correct database or index is also important.

在正确的数据库或索引中搜索也是重要的。

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This paper has introduced the design methodology of main memory, database index in fire monitoring system, and compared the system running efficiency in these two situations.

本文介绍了消防监控系统中内存数据库索引的设计方法，并对比了两种方法下的系统运行效率。

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We started with a blind placement strategy of putting the database index files on SSD storage, but that generated only a modest improvement ( less than2x).

首先采取随意安排的策略将数据库索引文件放到SSD存储上，但是这样做只获得不多的性能提升（不超过2倍）。

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Research on Main-Memory Database Index Mechanism and its Optimization

主存数据库索引机制及其优化研究

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As mentioned before, a database index is critical to performance.

正如上面所提到的那样，数据库索引对性能来说十分关键。

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This thesis aims to explore new ways of image database index technique of content-based image search engine after regional weighted entropy is applied to image feature extraction.

本文将区域加权信息熵应用于图像特征提取，探索基于内容图像搜索引擎图像库索引技术新途径。

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Secondary Link as Result of Database Index Searching by ASP Technique

用ASP技术实现数据库检索结果的二次连接

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By the research of database index, A new and efficient database index built by multi-dimension linked lists is given out, and also main problems of the database index are discussed there.

通过对多维链表的研究，提出一种全新的、基于多维链表的、可以同时在多个属性上建立高效数据库索引的方法，并对这种索引方法的主要问题进行了比较详细的讨论。

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This article introduces the concept and model of a component catalog database to manage component database.

论文为管理分布式构件库提出了构件目录库的概念和模型.

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Start RMAN and connect to the target database.

启动并连接到目标数据库.

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Start RMAN and connect to a target database.

启动RMAN并且连接到目标数据库.

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Data migration is a mapping between source database and target database.

数据迁移可以看作是实现从源数据库表到目的数据库表的映射.

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The RMAN backup and recovery environment is preconfigured for each target database.

对每个目标数据库来说RMAN的 备份恢复环境都要预先配置.

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You must have permission to create a table in the target database.

必须有在目标数据库中创建表的权限.

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