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开发MySql数据库的最新JDBC驱动。
开发MySql数据库的最新JDBC驱动。
- 2022-09-22 06:15:03下载
- 积分：1
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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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无线接收模块c语言源程序 调试有效 C51
无线接收模块c语言源程序 调试有效 C51-RF1903-C51-RF1903-jieshou
- 2022-07-15 17:30:22下载
- 积分：1
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％ 该Matlab程序基于牛顿－拉夫逊算法，用于计算已知导纳矩阵、PQ节点、PV节点、平衡节点(UA)的电力网络潮流
％ U...
％ 该Matlab程序基于牛顿－拉夫逊算法，用于计算已知导纳矩阵、PQ节点、PV节点、平衡节点(UA)的电力网络潮流
％ U - 各节点母线电压 S - 各节点注入功率 S_net - 电力网络总损耗
％ PQ_P - 实算PQ节点注入有功功率 PQ_Q - 实算PQ节点注入无功功率
％ delt_PQ_P - 实算PQ节点有功功率修正值 delt_PQ_Q －实算PQ节点无功功率修正值
％ delt_UA_P - 实平衡节点有功功率修正值 delt_U_2 - 实平衡节点电压平方修正值
％ delt_PQV - 实算P Q U^2修正值 J - 雅可比矩阵
％ e - 电压实部 f - 电压虚部 delt_ef - 电压实部与虚部修正值- The Matlab program based on the Newton- Raphson algorithm is used to calculate the admittance matrix is known, PQ node, PV node, the node balance (UA) the trend of the electricity networks U- the node bus voltage S- each node injection power S_net-- The total loss of electric power networks PQ_P- operator PQ is injected into active nodes PQ_Q- operator PQ is injected reactive power node delt_PQ_P- is considered the correct value of active power PQ node delt_PQ_Q- really count PQ node reactive power to amend the value of delt_UA_P- real active power balance of the correct value of the node delt_U_2- node voltage balance is the correct value of the square o
- 2022-10-25 02:45:02下载
- 积分：1
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用VB.net编写的记事本.希望对大家有用
用VB.net编写的记事本.希望对大家有用-using VB.net prepared by the notebook. We hope to useful
- 2022-04-08 04:49:16下载
- 积分：1
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可以看看啊！对学习操作系统又急于做课程设计的同学有帮助！！1...
可以看看啊！对学习操作系统又急于做课程设计的同学有帮助！！1-Can look at ah! Also eager to learn the operating system to do the curriculum design has helped the students! ! 1
- 2022-01-24 13:31:57下载
- 积分：1
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VB 纯数字验证码识别实例
vb6.0的验证码处理，在去除干扰点时，采用中值滤波是一种不错的方法，中值滤波法是一种非线性平滑技术，它将每一像素点的灰度值设置为该点某邻域窗口内的所有像素点灰度值的中值。中值滤波的实现方法
- 2022-02-06 20:07:19下载
- 积分：1
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牛顿
牛顿-拉夫逊法潮流计算程序-Newton- Raphson load flow calculation program
- 2022-04-09 06:56:59下载
- 积分：1
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这是个用Java语言编写的游戏小程序。故事的起因是：冷战虽然结束了，但又出现了来自太空的新敌人UFO，它们可以干扰自动导航的导弹系统，所以你得亲自标准目标，射击...
这是个用Java语言编写的游戏小程序。故事的起因是：冷战虽然结束了，但又出现了来自太空的新敌人UFO，它们可以干扰自动导航的导弹系统，所以你得亲自标准目标，射击。不能让它们登陆，否则你就输了！希望你从中可以学会如何用Java来编写此类游戏。-This the Java programming language of the game small programs. The causes of the story : Although the Cold War is over, but from a new enemy space UFO, they can interfere with the automatic navigation systems, so you have to personally standard target shooting. They can not allow the landing, otherwise you lose! I hope you can learn from how to use Java to prepare such games.
- 2022-06-03 13:35:07下载
- 积分：1
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赛车，专为大一学生课设而做，绝对原创
赛车，专为大一学生课设而做，绝对原创-Car, designed for freshman students to do class-based and absolutely original
- 2022-11-23 01:45:02下载
- 积分：1
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