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C#C/S结构的汽车销售系统源码
汽车销售系统,C/S结构,包含数据库,SQL包括销售流程,销售人员,管理人员,客户的登陆管理等,和汽车信息的管理。汽车的增删改查。
- 2022-02-02 08:07:25下载
- 积分:1
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这是一个类似机器鱼的游戏,模拟鱼的游动,自适应地改变方向
这是一个类似机器鱼的游戏,模拟鱼的游动,自适应地改变方向-This is a machine similar to the game fish, the fish swimming simulation, adaptive to change direction
- 2022-02-15 22:04:55下载
- 积分:1
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在设计一个应用程序时候往往会遇到大量的数据,而处理这些数据又会经常使用到表格。在使用表格对数据进行操作时能够既快速又准确...
在设计一个应用程序时候往往会遇到大量的数据,而处理这些数据又会经常使用到表格。在使用表格对数据进行操作时能够既快速又准确-application in the design of a procedure often encountered when large amounts of data, and the processing of these data will be used to form. The use of forms for data processing can be both fast and accurate
- 2023-01-11 07:00:04下载
- 积分:1
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这是我找的java原代码,大家一起分享哦.
这是我找的java原代码,大家一起分享哦.-I find this is the java source code, we share oh.
- 2023-07-27 13:50:03下载
- 积分:1
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ZED图形演示
zedgraph示例demo
- 2023-05-02 09:25:03下载
- 积分:1
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ZgGroupMenu
ZgGroupMenu
- 2022-03-12 22:46:12下载
- 积分:1
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人们在使用SQL时往往会陷入一个误区,即太关注于所得的结果是否正确,而忽略了不同的实现方法之间可能存在的 性能差异,这种性能差异在大型的或是复杂的数据库环境中(...
人们在使用SQL时往往会陷入一个误区,即太关注于所得的结果是否正确,而忽略了不同的实现方法之间可能存在的 性能差异,这种性能差异在大型的或是复杂的数据库环境中(如联机事务处理OLTP或决策支持系统DSS)中表现得尤为明 显。笔者在工作实践中发现,不良的SQL往往来自于不恰当的索引设计、不充份的连接条件和不可优化的where子句。在对 它们进行适当的优化后,其运行速度有了明显地提高!下面我将从这三个方面分别进行总结:-people in the use of SQL often fall into the trap, that is too focused on the findings is correct, and ignore a different method may exist between the performance differences, these differences in large or complex database environment (such as online transaction processing or decision support OLTP system DSS) has become even more obvious. In practice I found that the poor tend to SQL from inappropriate design of the index, not fully connected and non-optimal conditions where the phrase. On their proper optimization, and their operating speed has been improved! Now I will be three aspects of this summary :
- 2022-07-14 22:31:11下载
- 积分:1
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PixieLib(MFC扩充库)
资源描述MFC扩充库(全部有源程序),想学习的同学赶紧下载,好好加油!
- 2023-06-06 02:50:03下载
- 积分:1
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java swing 上传文件源码
package test;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JFileChooser;
import javax.swing.JFrame;
public class Win extends JFrame {
JButton jb = new JButton("上传");
public Win() {
jb.addAction
- 2022-03-25 22:46:16下载
- 积分:1
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days edge medicine outstanding business system for the registration module sourc...
天力卓越医药商务系统的注册模块原代码, 程序编写紧凑,比较使用,推荐!-days edge medicine outstanding business system for the registration module source code, programmers compact, more use and recommend!
- 2022-02-12 22:39:00下载
- 积分:1