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您可能已经设计了数据库，以及表
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 :
- 2023-04-05 12:15:04下载
- 积分：1
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本程序示例如何将多个文件合并成一个文件，并能够自分解。此技术在制作安装程序时非常有用。我在本网站学到了此技术，并将他整理扩展，能够合并文件和目录，个数不限。...
本程序示例如何将多个文件合并成一个文件，并能够自分解。此技术在制作安装程序时非常有用。我在本网站学到了此技术，并将他整理扩展，能够合并文件和目录，个数不限。-example of the procedures on how to merge multiple files into a document and to be able to decomposition. This technology in the manufacture and installation procedures will be very useful. On this website I learned this technology, he will collate extended to merge files and directories, open-number.
- 2022-03-18 11:35:36下载
- 积分：1
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Delphi 2005 ADO 连接演示
Delphi 2005 ADO 连接演示-connecting demo
- 2022-05-23 09:03:53下载
- 积分：1
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原理图，PCB文件，PCB3D效果图都有
原理图，PCB文件，PCB3D效果图都有-Schematic, PCB files, PCB3D effect diagram has
- 2022-04-10 13:51:36下载
- 积分：1
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MODBUS protocol debugging software, make this comparison useful and useful on th...
MODBUS协议调试软件，做这的比较好用，有用的就下载-MODBUS protocol debugging software, make this comparison useful and useful on the download
- 2022-01-26 02:59:11下载
- 积分：1
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适合VB初学者看，20字20字才能下载啊
适合VB初学者看，20字20字才能下载啊-VB for beginners, the 20 words of 20 characters can download ah
- 2022-07-27 13:59:35下载
- 积分：1
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毕业设计
毕业设计--心电信号分析系统
ecg qrs波 diagnostic-Graduation Project ECG analysis system diagnostic wave ecg qrs
- 2022-11-15 20:15:03下载
- 积分：1
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下载资源，以及从互联网上下载，临时紧急…
我比较着急下载资源，这个也是从网上下载的，暂时应急，以后一定将自己写的源码发送上来，是个比较简单的坦克大战，可以学习游戏的简单开发。-download resources, as well as downloaded from the Internet, temporary emergency, I must write their own source of this, was a relatively simple Tankedaizhan. can learn a simple game development.
- 2023-05-01 06:00:03下载
- 积分：1
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Pix模拟器，别的不说了，想学安全的来下 吧
Pix模拟器，别的不说了，想学安全的来下 吧-Pix Simulator, to say the least, and I wanted to learn to come under the safety bar
- 2022-01-25 20:32:32下载
- 积分：1
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dm642的DDK提供的Mini Driver的使用说明，教你创建视频输入，输出接口的配置...
dm642的DDK提供的Mini Driver的使用说明，教你创建视频输入，输出接口的配置-DM642 The DDK provides the use of Mini Driver that teach you to create video input, output interface configuration
- 2023-04-04 03:50:04下载
- 积分：1
