LINQ及其在成绩查询系统中的应用

LINQ是一系列编程接口的集合,它使用统一、对称的方式来与各种数据进行交互,降低了程序对数据访问的复杂度。阐述了LINQ的特性、体系架构、查询语法及LINQ to SQL技术在实际项目成绩查询系统中的应用,为软件开发者提供了操作数据的一条捷径。

Elasticsearch海量数据存储查询优化

在存储海量数据和后续查询经常需要模糊查询、检索实时性要求比较高的使用场景,Elasticsearch数据库是一个当下比较理想的解决方案,底层的倒排索引设计,可以提高全库搜索的实时性,主要介绍在实际项目开发中遇到的一些查询问题,以及相应的解决方案。其中主要从index的mapping设计和reindex修复mapping,以及不同的查询语法优化等几个方面介绍。

C#实现XML查询功能

C#是.NET开发平台的一个组成部分,不仅可以开发传统的桌面应用程序,更在网络和互联网应用程序的开发上大显身手。XML是跨平台的数据交换语言,对于XML数据的查询是各种开发工具都涉及的一部分功能。C#也是如此,在其最新版本3.0中包含了一些新的查询关键字,这些新关键字对XML查询功能有很大帮助。通过代码片段讲述了这些新查询关键字的用法,同时论述了这些新关键字是如何映射到查询操作符的定义方法上的,并且论述了如何定制使用者自己的查询关键字应用。

外语教学与Internet上Web信息查询

Ｉｎｔｅｒｎｅｔ的发展日新月异，丰富的外语教学信息资源充实于网上。随着我国的外语教学改革的发展，广大外语教师如何充分利用Ｉｎｔｅｒｎｅｔ的信息资源为外语教学服务已成为一个新的课题。本文就解决外语教师网上信息查询时的“瓶颈”问题作一些讨论。

基于旁路监听的数据库安全审计系统

通过分析数据库安全审计机制,提出一种基于旁路监听的数据库安全审计系统框架,并实现了针对Oracle数据库的安全审计系统。涉及Java网络抓包、TNS协议解析、SQL语法解析和数据库安全检测等技术实现,提出一种发现用户正常行为规则的异常检测算法。系统实验结果表明该系统能有效对Oracle数据库进行实时安全审计,并实现了数据库操作行为的安全检测。

Literature-based analysis on relationship of symptoms,drugs and therapies in treatment of intestinal diseases

OBJECTIVE:To evaluate clinical articles published in the past 30 years using the Traditional Chinese Medicine(TCM)theory of the lung being connected with large intestine to treat intestinal diseases.We also analyzed the relationship between symptoms,drugs and therapies with data-excavating technology to aid management.METHODS:After retrieving relevant clinical articles,we set up a database,used Microsoft Structured Query Language Server 2005 Analysis Services as a data-excavating tool,and applied the association rule to study the relationship between the symptoms,drugs and therapies of intestinal diseases.RESULTS:The key symptoms of dyschesia,constipation,abdominal fullness,fatigue and pale tongue could be treated with Kuxingren(Semen Armeniacae Amarum),Huangqi(Radix Astragali Mongolici)and Gualou(Fructus et Semen Trichosanthis)to invigorate Qi and moisten the intestine.Among these agents,Kuxingren(Semen Armeniacae Amarum)was used most frequently.Clearing Fu-organs was the most prevalent therapy for abdominal fullness,dyschesia,constipation and red tongue.Clearing Fu-organs could be achieved with Kuxingren(Semen Armeniacae Amarum)and Gualou(Fructus et Semen Trichosanthis),whereas Qi could be invigorated using Huangqi(Radix Astragali Mongolici),Gancao(Radix Glycyrrhizae),Baizhu(Rhizoma Atractylodis Macrocephalae)and Kuxingren(Semen Armeniacae Amarum).Moistening the intestine was possible with Kuxingren(SemenArmeniacae Amarum),Huomaren(Fructus Cannabis)and Jiegeng(Radix Platycodi).Also,moistening the lungs was done with Kuxingren(Semen Armeniacae Amarum),ventilating the lungs with Kuxingren(Semen Armeniacae Amarum)and Gualou(Fructus et Semen Trichosanthis),and nourishing the lungs with Huangqi(Radix Astragali Mongolici),Gancao(Radix Glycyrrhizae)and Kuxingren(Semen Armeniacae Amarum).These data demonstrated that Kuxingren(SemenArmeniacaeAmarum)was a key agent.CONCLUSION:Our analyses of the literature showed clear relationships between symptoms(constipation,dyschesia,abdominal fullness),drugs[Gualou(Fructus et Semen Trichosanthis),Kuxingren(Semen Armeniacae Amarum),Huangqi(Radix Astragali Mongolici)]and therapies(moistening the intestine,clearing Fu-organs,invigorating Qi,ventilating the lungs).