这是一个非常实用的网页LOGO。倒影文字

或许大家都设计过数据库,也为表定义过主键,今天我想阐述的是,应该如何正确的设计一个主键,在以往的一些资料中,都没有提及到主键设计的原则.我为此总结了一下: -you might have designed the database, as well as table-defined primary key, and today I would like to explain is that How should correct the design of a primary key, in the past some of the information. no mention of the primary key design principle. I summarize this for a moment :

Vissim 到 visuol visulbasic Vissim ile visulabasic referans ekleyerek similasyonda ki parametreleri okumak veya yeni değerleriyle 设置 etmek için yazılmış 标准 bir uygulama

它是一款非常实用的JAR转JAD文件的工具！-It is a very useful tool for JAR transfer JAD file!

用C语言编写的通讯录管理系统源码 谢谢使用-Contacts with the C language source code management system Thank you, use the

这是SCST仿真平台机器人足球赛一个参赛队的源代码 . 其中有人工智能的一些算法.-simulation platform robot soccer teams one source. These are some of the artificial intelligence algorithms.

VB实现的排雷程序 ,大体功能同windows自带的游戏相同,推荐初学VB的朋友-VB mine procedure, generally with the functions of Microsoft"s Windows game the same and recommend that when a friend VB

VC++学生信息管理系统 1. 去掉“只读”属性。 2. 在SQL Server2000中，附加数据库UGMS。 3. 编译不受源文件位置和数据库位置的影响。即，HMS的整个工程复制到任何地方都可编译。-VC++ Student Information Management System 1. Remove the " Read Only" attribute. 2. In SQL Server2000, the additional database UGMS. 3. Compiled from the source file location and database location of impact. Namely, HMS copy of the entire project can be compiled anywhere.

该程序是时间显示程序,一般可以使用LCD显示.-time of the procedure is indicated procedures, the general can use LCD display.

管理学经典案例分析与解析-classic case of management analysis and analytic

java 备忘录模式，实现前进，回退，让你有后悔药，包括例子。-java memorandum mode to achieve progress and regress, so that you can have a regret drugs, including examples.