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1.
在B/S模式下,普通用户可以方便地通过网络对远程SQL SERVER数据库查询,得到所需的数据.但对系统管理员而言,SQL SERVER数据库管理系统并未提供远程更新相关命令,所以数据库的更新通常是在服务器上直接进行,这样有时显得很不方便.如何实现服务器数据库的远程更新呢?本文以笔者开发的“具有网络查询功能的工资管理系统”的远程更新为例,介绍通过ASP实现SQL SERVER数据库远程局部更新的方法.  相似文献   

2.
设备及维修派工管理系统是基于Web平台,采用B/S模式,选择SQL Server作为数据库管理系统,运用ASP技术开发的系统。该系统界面友好、易于操作,可以实现企业设备资源共享,提高设备管理效率,使设备管理与分配更加方便、快捷。  相似文献   

3.
SQL注入攻击是基于ASP/ASP.NET+ACCESS/SQL Server架构的Web应用程序和数据库系统,将非法的SQL命令语句通过正常的数据传递渠道提交至数据库内部执行,从而达到篡改、破坏数据的目的.针对此,三种基于SQL注入攻击的防御技术:参数化查询、存储过程和URL重写,通过实例来验证和比较它们的防御效果,为合理选择使用、提高Web应用程序的安全性提供一定的参考和借鉴.  相似文献   

4.
SQLServer是一种主流的数据库管理系统,数据库应用系统都以SQL Server作为后台数据库,而数据库的性能优化直接影响到整个数据库应用系统的有效远行.为提高数据库的运行效率,本文分析了影响结构化查询语句(SQL)查询语句执行效率的因素,并在此基础上研究了对SQL查询语句进行优化的常用方法,包括数据类型、数学操作符、相关子查询等方面的适当的使用.同时指出,实践中程序员应反复实验,不同的语句进行比较,以得到最恰当的方案.  相似文献   

5.
本文主要围绕多媒体教学资源管理系统的设计与实现,该系统由三大模块组成:素材库资源管理、教材库资源管理和多媒体网络视频点播管理。系统Web页面使用Dreamw eaver工具进行设计,数据库使用SQL Server,并利用ASP动态网页技术和多媒体数据传输技术实现了整个系统的开发。  相似文献   

6.
DELPHI与使用 SQL语言的数据库管理系统完全兼容,因而,在使用 DELPHI开发数据库应用程序时,可以使用 SQL语言编程.介绍了在 DELPHI中如何使用 SQL语句.  相似文献   

7.
DELPHI与使用SQL语言的数据库管理系统完全兼容,因而,在使用DELPHI开发数据库应用程序时,可以使用SQL语言编程。介绍了在DELPHI中如何使用SQL语句。  相似文献   

8.
对于初学数据库的学生而言,SQL查询语句是他们走进数据库世界必须通过的大门之一,也是"门槛"较高的大门之一。如何使用简单的命令来完成复杂多变的查询成为困扰学生的一个难题。该文从解决SQL查询语句的入门学习难点入手,详细介绍了如何让学生利用"对号入座"法来编写SQL查询语句。  相似文献   

9.
学生在学习SQL语言时,必须通过不断练习才能提高实践操作能力。而评判学生练习的正误和给予及时反馈是提高其学习积极性和学习能力的重要手段。文章基于Web的SQL语言自动练习系统.主要针对SQLSERVER数据库设计一个SQL语言自动练习系统,主要难点是SQL语句正确性的判断。  相似文献   

10.
Oracle数据库系统是目前世界上最流行的关系数据库管理系统,系统可移植性好、使用方便、功能强大,适用于各类大、中、小型微机环境。基于数据库的应用系统,其性能的好坏首先取决于系统开发和设计人员.数据库管理员在其基础上进行调整。通过长期维护经验总结.80%左右的系统性能问题都是不良SQL语句引起的,通过对数据库和SQL语句进行优化。可以很大程度提高应用系统的性能。  相似文献   

11.
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.  相似文献   

12.
汉字倒说     
汉字的六书,《说文》对“转注”一类,语焉不详。后世学者提及转注,也仅限于许慎所举出的例字。《汉字例说》一文,作者从转注的角度综合考虑,对部分现代常用字作了分析,跟传统的解释有所不同。希望能抛砖引玉,互相切磋,以推进学术研究。  相似文献   

13.
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.  相似文献   

14.
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.  相似文献   

15.
《海外英语》2007,(5):44-45
It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,  相似文献   

16.
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/  相似文献   

17.
《海外英语》2007,(5):10-11
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?  相似文献   

18.
Different nations have different social cultures, and the social culture of every nation is developing with the development of the nation, language is greatly influenced by social culture, which enables language to possess national and historical characteristics. Word is the smallest, independent, meaningful linguistic unit of language. It can well reflect the national and historical characteristics. From synchronic aspect, the social and cultural influence on word meaning is mainly embodied in conceptual and associative meanings of word. The incorrespondence of word meaning is a phenomenon that exists in both conceptual and associative meanings of word among different languages. From diachronic aspect, the development of social culture causes some changes of word meaning to some extent. Therefore, social culture plays a key role in vocabulary learning and mastery of a language.  相似文献   

19.
钱生钱!     
我们绝大部分人都同意一件事情——我们喜欢金钱。但是你对金钱的喜欢之情足够到让你创立一份事业么?.财富通常被人忽视,主要在于人们不能真正了  相似文献   

20.
《海外英语》2007,(4):36
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.  相似文献   

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