基于B/S结构的网上学生选课系统的设计及研究

简单介绍客户机/服务器(C/S)及浏览器/服务器(B/S)模式,以及在软件工程中的统一建模语言UML(Unified Modeling Language),并将浏览器/服务器模式与客户机/服务器模式相比较,讨论了浏览器/服务器模式在Internet中的应用优势。然后介绍了通过WWW访问数据库的方法,最后给出了一个学生选课系统的实例,并描述了该系统的模型。     

网络环境下的数据库应用及研究

主要针对网络的两大主流技术C/S结构与B/S结构,进行充分比较和分析,C/S结构适合于局域网及安全性要求高的系统开发模式,而B/S结构适合于安全性要求不高且成本较低的一些系统开发模式.还阐述数据库在网格上数据共享访问、最小的冗余度、数据一致性好、数据的完整性和强有力的访问控制等应用特点,及数据库访问标准ODBC与JD-BC,ODBC提供给程序员一般的访问数据库内容的简单方法,而JDBC是针对JAVA语言设计的访问数据库内容的方法及网络数据库受到的威胁问题和网络数据库安全问题的解决办法,如采取相关的措施:用户标识和鉴定、存取控制、审计、数据加密和视图等.     

煤矿管理人员网络考试系统的设计与实现

本文分析了B/S模式的特点,煤矿管理人员网络考试系统采用B/S模式是可行的,介绍了系统的需求分析、功能结构、数据库设计、PHP访问数据库技术.     

教务管理系统信息化的实现

教务管理系统软件开发的必要性及其使用中对教学管理效率的提高.C/S模式和B/S模式结合的理念.界面设计要简捷,方便,可靠.数据库用户访问安全性讨论.     

版面基于B/S模式信息管理系统的设计与实现

Brower/Server模式已经成为当前开发管理信息系统的流行方式,阐述了利用B/S模式开发管理信息系统的方法,详细介绍了基于三层结构B/S模式的系统实现的原理和方法,比较了数据库访问等关键问题的实现方法。     

基于JDBC的C/S模式下的远程数据库访问

随着Internet/Intranet的普及和WEB技术的不断发展,网络技术逐渐成为现代信息技术的主流。数据库作为信息处理的对象,面临互联网上数据库产品的复杂性、数据传送的速度慢及操作平台的不一致等问题。本文通过对基于JDBC的C/S模式原理的分析,讨论了远程数据库访问的技术方法及实现的问题。     

基于C/S结构的图书馆管理系统的设计与实现

图书馆管理系统主要实现对馆中书籍的详细资料、出入库和租借情况进行管理。本系统的开发平台是Visual C＋＋6．0．采用C/S体系结构。数据库服务器采用Microsoft SQL Server，访问数据库的方式采用当前很流行的ADO。本文就需求分析、设计思想、具体方案等各个方面系统地介绍了基于C/S结构的图书馆管理系统的开发过程。     

基于校园网结构的网络数据库应用系统的设计与实施

本文介绍了一个基于校园网结构的网络数据库应用系统的设计与实施思想及过程,提出在"C/S B/S"网络系统结构模式的基础上运用"全局数据库"与"视图"对数据库系统进行数据处理的过程,实现了对各级部门数据库数据的通信管理。     

基于JSP与JavaBean技术的数据库访问方法研究

介绍了JSP技术的一些特性和原理。研究了在B/S模式下,利用JSP和JavaBean技术进行数据库访问的方法。用JSP文件负责页面显示,对数据库的操作封装在JavaBean中。用此方法,可提高对数据库进行访问的安全性,方便调试,并可重用封装数据库操作的JavaBean。     

利用ODBC实现异源数据的共享

在管理信息系统中,无论采用C/S还是B/S结构,都要涉及到数据库的连接和访问,由于其数据格式、数据操作方法以及对SQL语言的实现等方面都有较大的差异,实现异源数据库间的数据共享显得尤为重要,本文从实际开发应用系统出发,介绍使用ODBC连接数据库和共享异源数据的方法.     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.