DB 2 is IBM developed a set of database management software.

Familiar with database system; Familiar with the knowledge of network.

了解数据库系统; 熟悉网络知识.

The database system mainly includes risk information database and project risk database.

该数据库系统主要包括风险信息数据库和工程风险数据库两部分.

Database System Design, Implementation, and Administration, Query Optimization, and SQL Performance Tuning.

数据库系统设计, 实施, 管理, 查询优化和SQL性能调优.

The functions of database system designed are introduced as follows.

研制的纳米材料数据库系统具有以下功能.

Dependence on the traditional database system is difficult with competent.

单纯依靠传统的数据库系统是难以胜任的.

Parallel query optimization is the critical technique of parallel database system.

查询优化是并行数据库系统的核心技术.

Recover mechanism is a very important part of distributed database system.

其中恢复机制是分布式数据库非常重要的组成部分.

Heterogeneous database data ― dump is most important in heterogeneous database system.

异构型数据库的数据转储是异构性数据库系统中非常重要的问题.

Enterprise Edition MS SQL database system need to buy later use.

企业版采用MSSQL数据库系统,需要购买后使用.

The EMS memory database system is realized by DLL and FileMaping.

内存数据库利用动态链接库和内存映射文件加以实现.

Fault tolerance and semantics of component based software

基于组件软件的容错及语义

At first, he developed a modal logic semantics, and has achieved notable successes.

起初，他发展了模态逻辑语义学，并取得了引人注目的成就。

A Logic Semantics Analysis Algorithm for Railway Station Layouts

一种站场图逻辑语义解析算法

Questions on Logic Semantics of Chinese Medical Terms

中医理论术语的逻辑语义问题

A Distributed Query Optimization Based on Semantics and Logic

基于语义和逻辑的分布查询优化

This method combines phrase dictionary and local analysis, and expand the query both in semantics and syntax.

本文将术语词典和局部分析法结合起来，从语义和语法两个层面做查询扩展。

Particularly, the index construction methods, semantic coordination, query semantics, query processing strategies, types of queries supported, and query optimization of P2P database-style queries are discussed in detail.

然后针对上述3个方面，论述P2P数据管理研究的现状，着重讨论了P2P数据库查询的索引构造策略、语义异构的解决方法、查询语义、查询处理策略、查询类型和查询优化技术。

Since/ text() generally makes a difference for query semantics, it also makes a difference for index eligibility.

既然/text（）通常会使查询语义不同，它也会使索引合格性不同。

Thus, in the general case, the query semantics are different depending on the use of/ text().

因此，一般情况下，查询语义是不同的，这取决于/text（）的使用。

Otherwise, the query semantics do not allow index usage.

否则，查询语义不允许使用索引。