-
VB_PPT
VB.NET 程序设计语言课程内容
第一章:概述
第二章:使用窗体和控件
第三章:变量和数组
第四章:过程
第五章:判断结构与循环结构
第六章:验证用户输入
第七章:面向对象编程
第十一章 使用 ADO.NET
数据库概念
ADO.NET 概述
使用数据
数据库概念
数据库术语
数据库编程的工作方式
SQL
连接环境
非连接环境
课堂练习 区别适用于连接或非连接方案的场景
数据库术语
数据库编程的工作方式
SQL
连接环境
在连接环境中,应用程序会持续连接到数据源上
优点
连接环境更易于维护
并发控制更容易
与非连接环境相比,数据更容易刷新
缺点
必须维持稳定的网络连接
有限的可扩展性
非连接环境
非连接环境是指可以在本地对数据进行单独修改,然后再把修改更新到数据库
优点
与数据源保持连接的时间短,而且并发访问的连接数少,从而能为更多用户提供服务
非连接环境大大增加了连接的可用性,从而改善了应用程序的可扩展性和性能
缺点
数据不总是最新的
可能发生更改冲突,这是个必须解决的问题 ()
- 2008-05-12 11:06:03下载
- 积分:1
-
Hierarchical-Color-Correction
说明: 用于进行色彩空间转换的外文资料,有做相关方面的可以看看(Used for color space conversion of foreign materials, there can look at relevant aspects of doing)
- 2011-03-22 17:23:52下载
- 积分:1
-
Effective-and-More-Effective-CPP
关于高效的C++编程的电子书,内容很详细,对于C++学习很有用。(About efficient C++ programming e-books, the content is very detailed, very useful for C++ learning.)
- 2013-07-21 23:41:17下载
- 积分:1
-
DiscreteMathematicsandItsApplications
一本非常NB的关于计算机的离散数学与应用书籍!(Discrete Mathematics and its Applications is a focused introduction to the primary themes in a discrete mathematics course, as introduced through extensive applications, expansive discussion, and detailed exercise sets. These themes include mathematical reasoning, combinatorial analysis, discrete structures, algorithmic thinking, and enhanced problem-solving skills through modeling. Its intent is to demonstrate the relevance and practicality of discrete mathematics to all students. The Fifth Edition includes a more thorough and linear presentation of logic, proof types and proof writing, and mathematical reasoning. This enhanced coverage will provide students with a solid understanding of the material as it relates to their immediate field of study and other relevant subjects. The inclusion of applications and examples to key topics has been significantly addressed to add clarity to every subject.
True to the Fourth Edition, the text-specific web site supplements the subject matter i)
- 2009-12-07 21:32:17下载
- 积分:1
-
NAVIDIA-CUDA-PPT
清华大学CUDA编程教程,能够快速掌握CUDA编程技巧和应用案例(Tsinghua University CUDA programming tutorials, to quickly master the the CUDA programming skills, and the application case)
- 2013-04-06 20:54:07下载
- 积分:1
-
Pham_Van_project_summary_report
项目工作总结报告范文,项目的前期市场调研总结等例子,对项目管理人员有帮助(Pham Van project summary report)
- 2010-09-03 14:20:50下载
- 积分:1
-
SARimage
保铮的最新雷达成像原理,对于学习SAR的同志帮助很大。(the latest radar imaging principle, the SAR study Comrade great help.)
- 2021-04-20 00:28:50下载
- 积分:1
-
4-10
这是清华版c++程序设计 第四章课后题第10题(This is the Tsinghua version c Program Design Chapter IV title after title No. 10)
- 2008-01-05 13:47:01下载
- 积分:1
-
guzhanglubo
这是一篇有关故障录波仪如何开发的硕士论文,论文行文清楚、逻辑分明,重点讲述了故障录波器的算法,值得看。(This is a fault recorder on how to develop the master's thesis papers lines clearly and logically distinct, and highlight the fault recorder algorithm worth observing.)
- 2006-09-06 14:25:50下载
- 积分:1
-
Csdn
Csdn刷下载积分工具,请慎重使用.后果自负(Csdn brush tool to download Points)
- 2010-01-13 22:44:13下载
- 积分:1