基于4.5Framework web程序、SQLSERVER数据库打包-Mysql Tutorial-php.cn

Home

Database

Mysql Tutorial

基于4.5Framework web程序、SQLSERVER数据库打包

WBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWBOYWB

Jun 07, 2016 pm 03:35 PM

webbased onprogram

估计很多朋友和我一样，对于C/S程序打包很熟悉，但对于B/S程序打包一头雾水。。。最近公司要求我们把项目和数据库(SQLSERVER)一起打包，然后安装在CD光盘上，打算拿光盘去客户那边实现一键安装。哎！！！最终这个任务给我了，我只有抱着学习的态度去慢慢摸

　　估计很多朋友和我一样，对于C/S程序打包很熟悉，但对于B/S程序打包一头雾水。。。

　　最近公司要求我们把项目和数据库(SQLSERVER)一起打包，然后安装在CD光盘上，打算拿光盘去客户那边实现一键安装。哎！！！最终这个任务给我了，

我只有抱着学习的态度去慢慢摸索。

　　打包的程序是基于VS2012、MVC4模板开发出来的，框架是4.5版本。

　　类似于这种4.5框架打包，目前微软好像也提供了一个打包工具 InstallShield,下载InstallShield2012 或者InstallShield2013，然后安装，安装完成之后就会

在安装和部署里面会生成一个图标（InstallShield Limited Edition Project）, 如下图（1.1）。。

基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　图（1.1）

通过双击 InstallShield Limited Edition Project这个图标，就可以根据前进、后退图标实现安装了，如图（1.2）

基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　图（1.2）

最终WEB打包生成出来的只是一个lnk快捷方式图标，无法指定到输出文件。然后我用C/S WINFORM程序、也是基于4.5框架来进行打包，发现安装生成出来的

文件可以完美运行。

产生这种情况我也感到很无语，于是在网上查找这方面的相关资料，发现InstallShield这款插件从2010开始，微软已经不管了，只是推荐这款插件。

哎！！！真坑...

基于这种情况我彻底无语了，只能从新找其他办法。

之后我就开始尝试把4.5框架程序降到4.0框架程序，然后再次进行打包。

降框架有两种办法：1.在VS2012上面打开，更改所有程序集的目标框架，如图（1.3）

基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　　如图（1.3）

　　　　　　　2.　用文本打开项目文件进行更改，更改TargetFrameworkVersion 为v4.0 如图（1.4）

　　　　基于4.5Framework web程序、SQLSERVER数据库打包

图（1.4）

但是如果在4.5框架程序中引用了4.5版本的包，那也要对包进行降版本。去掉引用的包，或者找低版本的包来替代高版本的包

下面开始讲解用VS2010打包 4.0WEB程序

1.用VS2010打开即将要打包的WEB程序（图就省了。。）

2.右击解决方案一>添加一>新建项目，然后点击web安装项目，如图（1.5）

基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　　　　　　　图（1.5）

　　 3.右击安装包WebSetup1一>添加一>项目输出，然后选中项目WEB程序集，选中本地化资源、内容文件如图（1.6）、（1.7）

　　　　基于4.5Framework web程序、SQLSERVER数据库打包

图（1.6）

基于4.5Framework web程序、SQLSERVER数据库打包

图（1.7）

4.右击安装包一>视图一>用户界面，如图（1.8）

　　　　基于4.5Framework web程序、SQLSERVER数据库打包

图（1.8）

5.右击启动一>添加对话框一>选中文本框、许可协议，如图（1.9）

　　　　基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　　　图（1.9）

6.右击文本框（A）,许可协议上移到选定的位置，如图（2.0）

　　　　基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　图（2.0）

　　　　　　7.新建一个许可协议文件，打开WORD文档，里面写写协议内容，保存后WORD文档要改成rtf格式，然后右击许可协议一>属性窗口，在LicenseFile属性中点击浏览，如图（2.1）

　　　　　　　　基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　如图（2.1）

　　8.双击Web应用程序文件夹，添加rtf文件，如图（2.2）

　　　　　　基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　　　　　图（2.2）

　　　　　9.右击解决方案一>新建项目一>类库，命名为安装类（我随便命名的），右击安装类一>添加一>新建类一>安装程序类，如图（2.3）

　　　　　　基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　　　　　　　图（2.3）

　　　　10.双击安装类一>单击此处切换到代码视图，如图（2.4）

　　　　　　基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　　　　　如图(2.4)

　　　　　　11.重写安装类，源码如下

<span>using</span><span> System;
</span><span>using</span><span> System.Collections;
</span><span>using</span><span> System.Collections.Generic;
</span><span>using</span><span> System.ComponentModel;
</span><span>using</span><span> System.Configuration.Install;
</span><span>using</span><span> System.Data.SqlClient;
</span><span>using</span><span> System.IO;
</span><span>using</span><span> System.Linq;


</span><span>namespace</span><span> 安装类
{
    [RunInstaller(</span><span>true</span><span>)]
    </span><span>public</span> <span>partial</span> <span>class</span><span> Installer : System.Configuration.Install.Installer
    {
        </span><span>public</span><span> Installer()
        {
            InitializeComponent();<br>
        }


        </span><span>///</span> <span><summary></summary></span>
        <span>///</span><span> 重写安装方法
        </span><span>///</span> <span></span>
        <span>///</span> <span><param name="stateSaver"></span>
        <span>public</span> <span>override</span> <span>void</span><span> Install(IDictionary stateSaver)
        {
            </span><span>base</span><span>.Install(stateSaver);
            </span><span>string</span> Server = Context.Parameters[<span>"</span><span>server</span><span>"</span><span>].ToString();
            </span><span>string</span> dbName = Context.Parameters[<span>"</span><span>dbname</span><span>"</span><span>].ToString();
            </span><span>string</span> userName = Context.Parameters[<span>"</span><span>user</span><span>"</span><span>].ToString();
            </span><span>string</span> userPass = Context.Parameters[<span>"</span><span>pwd</span><span>"</span><span>].ToString();
            </span><span>string</span> targetdir = Context.Parameters[<span>"</span><span>targetdir</span><span>"</span><span>].ToString();

            </span><span>/*</span><span>
            * 设置webconfig连接字符串
            </span><span>*/</span>
            <span>string</span> webconfigpath = Path.Combine(<span>this</span>.Context.Parameters[<span>"</span><span>targetdir</span><span>"</span>].ToString(), <span>"</span><span>web.config</span><span>"</span><span>);
            </span><span>//</span><span>修改第一个数据库连接</span>
            <span>string</span> webcofnigstring2 = File.ReadAllText(webconfigpath).Replace(<span>@"</span><span>server=JEFFREY9061\SQL2008;database=yd_esms;uid=sa;pwd=********</span><span>"</span><span>, GetConnectionString2());
            File.WriteAllText(webconfigpath, webcofnigstring2);
            </span><span>//</span><span>修改第二个数据连接</span>
            <span>string</span> webcofnigstring = File.ReadAllText(webconfigpath).Replace(<span>@"</span><span>Data Source=JEFFREY9061\SQL2008;Initial Catalog=yd_esms;Persist Security Info=True;User ID=sa;Password=******</span><span>"</span><span>, GetConnectionString());
            File.WriteAllText(webconfigpath, webcofnigstring);
            </span><span>//</span><span>这个是测试在安装目录下添加接收到的用户填写的数据库信息</span>
            File.WriteAllText(Path.Combine(targetdir, <span>"</span><span>log.txt</span><span>"</span>), Server + <span>"</span><span>/n/r</span><span>"</span> + dbName + <span>"</span><span>/n/r</span><span>"</span> + userName + <span>"</span><span>/n/r</span><span>"</span> +<span> userPass);
        }
        </span><span>///</span> <span><summary></summary></span>
        <span>///</span><span> 执行sql语句
        </span><span>///</span> <span></span>
        <span>///</span> <span><param name="connection"></span>
        <span>///</span> <span><param name="sql"></span>
        <span>void</span> ExecuteSQL(SqlConnection connection, <span>string</span><span> sql)
        {
            SqlCommand cmd </span>= <span>new</span><span> SqlCommand(sql, connection);
            cmd.ExecuteNonQuery();
        }
        </span><span>///</span> <span><summary></summary></span>
        <span>///</span><span> 获取文本框输入的信息,来插入到登录连接字符串
        </span><span>///</span> <span></span>        
        <span>///</span> <span><returns></returns></span>
        <span>private</span> <span>string</span><span> GetConnectionString()
        {
            </span><span>return</span> <span>@"</span><span>Data Source=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>server</span><span>"</span>] + <span>"</span><span>;Initial Catalog=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>dbname</span><span>"</span>] + <span>"</span><span>;Persist Security Info=True;User ID=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>user</span><span>"</span>] + <span>"</span><span>;Password=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>pwd</span><span>"</span>] + <span>""</span><span>;
        }
        </span><span>private</span> <span>string</span><span> GetConnectionString2()
        {
            </span><span>return</span> <span>@"</span><span>server=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>server</span><span>"</span>] + <span>"</span><span>;database=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>dbname</span><span>"</span>] + <span>"</span><span>;uid=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>user</span><span>"</span>] + <span>"</span><span>;pwd=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>pwd</span><span>"</span><span>];
        }
    }
}</span>

　　　　12.安装类点击生成，又击WEB安装包一>添加一>项目输出，选中安装类为主输出，如图（2.5）

　　　　基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　如图（2.5）

　　　　13.有击WEB安装包一>视图一>自定义操作，右击安装一>添加自定义操作一>双击Web应用程序文件夹，选中主输出来自安装类(活动)，如图（2.6）

　　　　　　　　　　　基于4.5Framework web程序、SQLSERVER数据库打包　　　

　　　　　　　　　　　　　　　　　　　　　　　　如图（2.6）

　　　　　　14.依次对WEB程序、安装类、安装包重新生成

　　　　　　15.右击安装包一>打开资源管理文件夹一>debug,在debug文件夹中会存在exe、msi两个文件，如图（2.7）

　　　　　　基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　　　　　如图（2.7）

　　　　　16.双击setup.exe 安装步骤如下

　　　　　　基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　17.基本上再这里就算结束了，后面的我就不用演示了。

下面讲解如何把SQLSERVER数据库和程序一键打包，打包数据库其实很简单

　　　　　　分离数据库，找到对应的ldf、mdf文件进行复制，粘贴到任意盘，我是放到桌面了，如图（3.1）

　　　　　　　　　　　　　　基于4.5Framework web程序、SQLSERVER数据库打包

　　　　　　　　　　　　　　　　　　　　图（3.1）

　　　　　　右击安装包一>添加一>文件，把ldf、mdf文件添加进去，如图（3.2）

　　　　　　　　　　　　　　基于4.5Framework web程序、SQLSERVER数据库打包、　　

　　　　　　　　　　　　　　　　图（3.2）

　　　　　　打开安装类，添加一段代码，结合WEB源码如下　

<span>using</span><span> System;
</span><span>using</span><span> System.Collections;
</span><span>using</span><span> System.Collections.Generic;
</span><span>using</span><span> System.ComponentModel;
</span><span>using</span><span> System.Configuration.Install;
</span><span>using</span><span> System.Data.SqlClient;
</span><span>using</span><span> System.IO;
</span><span>using</span><span> System.Linq;


</span><span>namespace</span><span> 安装类
{
    [RunInstaller(</span><span>true</span><span>)]
    </span><span>public</span> <span>partial</span> <span>class</span><span> Installer : System.Configuration.Install.Installer
    {
        </span><span>public</span><span> Installer()
        {
            InitializeComponent();
        }

        </span><span>///</span> <span><summary></summary></span>
        <span>///</span><span> 重写安装方法
        </span><span>///</span> <span></span>
        <span>///</span> <span><param name="stateSaver"></span>
        <span>public</span> <span>override</span> <span>void</span><span> Install(IDictionary stateSaver)
        {
            </span><span>base</span><span>.Install(stateSaver);
            </span><span>string</span> Server = Context.Parameters[<span>"</span><span>server</span><span>"</span><span>].ToString();
            </span><span>string</span> dbName = Context.Parameters[<span>"</span><span>dbname</span><span>"</span><span>].ToString();
            </span><span>string</span> userName = Context.Parameters[<span>"</span><span>user</span><span>"</span><span>].ToString();
            </span><span>string</span> userPass = Context.Parameters[<span>"</span><span>pwd</span><span>"</span><span>].ToString();
            </span><span>string</span> targetdir = Context.Parameters[<span>"</span><span>targetdir</span><span>"</span><span>].ToString();

            </span><span>/*</span><span>
            * 设置webconfig连接字符串
            </span><span>*/</span>
            <span>string</span> webconfigpath = Path.Combine(<span>this</span>.Context.Parameters[<span>"</span><span>targetdir</span><span>"</span>].ToString(), <span>"</span><span>web.config</span><span>"</span><span>);
            </span><span>//</span><span>修改第一个数据库连接</span>
            <span>string</span> webcofnigstring2 = File.ReadAllText(webconfigpath).Replace(<span>@"</span><span>server=JEFFREY9061\SQL2008;database=yd_esms;uid=sa;pwd=********</span><span>"</span><span>, GetConnectionString2());
            File.WriteAllText(webconfigpath, webcofnigstring2);
            </span><span>//</span><span>修改第二个数据连接</span>
            <span>string</span> webcofnigstring = File.ReadAllText(webconfigpath).Replace(<span>@"</span><span>Data Source=JEFFREY9061\SQL2008;Initial Catalog=yd_esms;Persist Security Info=True;User ID=sa;Password=******</span><span>"</span><span>, GetConnectionString());
            File.WriteAllText(webconfigpath, webcofnigstring);
            </span><span>//</span><span>这个是测试在安装目录下添加接收到的用户填写的数据库信息</span>
            File.WriteAllText(Path.Combine(targetdir, <span>"</span><span>log.txt</span><span>"</span>), Server + <span>"</span><span>/n/r</span><span>"</span> + dbName + <span>"</span><span>/n/r</span><span>"</span> + userName + <span>"</span><span>/n/r</span><span>"</span> +<span> userPass);
            </span><span>#region</span> 数据库处理
            <span>string</span> strSql = <span>""</span><span>;
            </span><span>if</span> (userPass == <span>""</span><span>)            
            {
                strSql </span>= <span>"</span><span>server=</span><span>"</span> + Server + <span>"</span><span>;database=master;Integrated Security=True</span><span>"</span>;<span>//</span><span>连接数据库字符串      </span>
<span>            }           
            </span><span>else</span><span>             
            {
                strSql </span>= <span>"</span><span>server=</span><span>"</span> + Server + <span>"</span><span>;uid=</span><span>"</span> + userName + <span>"</span><span>;pwd=</span><span>"</span> + userPass + <span>"</span><span>;database=master</span><span>"</span>;<span>//</span><span>连接数据库字符串                </span>
<span>            }            
            </span><span>string</span> DataName = <span>"</span><span>TEST</span><span>"</span>;<span>//</span><span>数据库名          </span>
            <span>string</span> strMdf = targetdir + <span>@"</span><span>TEST.mdf</span><span>"</span>;<span>//</span><span>MDF文件路径，这里需注意文件名要与刚添加的数据库文件名一样！      </span>
            <span>string</span> strLdf = targetdir + <span>@"</span><span>TEST_log.ldf</span><span>"</span>;<span>//</span><span>LDF文件路径       </span>
            <span>base</span><span>.Install(stateSaver);
            </span><span>this</span>.CreateDataBase(strSql, DataName, strMdf, strLdf, targetdir);<span>//</span><span>开始创建数据库 </span>
            <span>#endregion</span><span>
        }
        </span><span>///</span> <span><summary></summary></span>
        <span>///</span><span> 执行sql语句
        </span><span>///</span> <span></span>
        <span>///</span> <span><param name="connection"></span>
        <span>///</span> <span><param name="sql"></span>
        <span>void</span> ExecuteSQL(SqlConnection connection, <span>string</span><span> sql)
        {
            SqlCommand cmd </span>= <span>new</span><span> SqlCommand(sql, connection);
            cmd.ExecuteNonQuery();
        }
        </span><span>///</span> <span><summary></summary></span>
        <span>///</span><span> 获取文本框输入的信息,来插入到登录连接字符串
        </span><span>///</span> <span></span>        
        <span>///</span> <span><returns></returns></span>
        <span>private</span> <span>string</span><span> GetConnectionString()
        {
            </span><span>return</span> <span>@"</span><span>Data Source=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>server</span><span>"</span>] + <span>"</span><span>;Initial Catalog=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>dbname</span><span>"</span>] + <span>"</span><span>;Persist Security Info=True;User ID=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>user</span><span>"</span>] + <span>"</span><span>;Password=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>pwd</span><span>"</span>] + <span>""</span><span>;
        }
        </span><span>private</span> <span>string</span><span> GetConnectionString2()
        {
            </span><span>return</span> <span>@"</span><span>server=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>server</span><span>"</span>] + <span>"</span><span>;database=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>dbname</span><span>"</span>] + <span>"</span><span>;uid=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>user</span><span>"</span>] + <span>"</span><span>;pwd=</span><span>"</span> + <span>this</span>.Context.Parameters[<span>"</span><span>pwd</span><span>"</span><span>];
        }

        </span><span>///</span> <span><summary></summary></span>   
        <span>///</span><span> 附加数据库方法        
        </span><span>///</span> <span></span>          
        <span>///</span> <span><param name="strSql"></span><span>连接数据库字符串，连接master系统数据库</span><span></span>        
        <span>///</span> <span><param name="DataName"></span><span>数据库名字</span><span></span>          
        <span>///</span> <span><param name="strMdf"></span><span>数据库文件MDF的路径</span><span></span>        
        <span>///</span> <span><param name="strLdf"></span><span>数据库文件LDF的路径</span><span></span>        
        <span>///</span> <span><param name="path"></span><span>安装目录</span><span></span>         
         <span>private</span> <span>void</span> CreateDataBase(<span>string</span> strSql, <span>string</span> DataName, <span>string</span> strMdf, <span>string</span> strLdf, <span>string</span><span> path)      
         {             
             SqlConnection myConn </span>= <span>new</span><span> SqlConnection(strSql);         
             String str </span>= <span>null</span><span>;            
             </span><span>try</span><span>
             {
                 str </span>= <span>"</span><span> EXEC sp_attach_db @dbname='</span><span>"</span> + DataName + <span>"</span><span>',@filename1='</span><span>"</span> + strMdf + <span>"</span><span>',@filename2='</span><span>"</span> + strLdf +
                       <span>"</span><span>'</span><span>"</span><span>;
                 SqlCommand myCommand </span>= <span>new</span><span> SqlCommand(str, myConn);
                 myConn.Open();
                 myCommand.ExecuteNonQuery();
                 </span><span>//</span><span>MessageBox.Show("数据库安装成功！点击确定继续");
                 </span><span>//</span><span>需Using System.Windows.Forms           </span>
<span>             }
             </span><span>catch</span><span> (Exception ex)
             {
                 Console.Write(ex.StackTrace.ToString());
                 </span><span>//</span><span>MessageBox.Show("数据库安装失败！" + e.Message + "\n\n" + "您可以手动附加数据");  </span>
<span>                 System.Diagnostics.Process.Start(path);
                 </span><span>//</span><span>打开安装目录           </span>
<span>             }
             </span><span>finally</span><span>
             {
                 myConn.Close();
             }        
         }
    }
}</span>

　　最后把解决方案全部重新生成，再次重复上面的WEB打包、安装就好了。。。

　由于空余的时间不是很多，写的不是很详细，如有不懂的，可以来我QQ群一起讨论

　QQ群号： 8017417 身份认证：Rach技术讨论

http://www.cnblogs.com/hank-hu/p/3967101.html

Statement

The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Explain the role of InnoDB redo logs and undo logs.Apr 15, 2025 am 12:16 AM

InnoDB uses redologs and undologs to ensure data consistency and reliability. 1.redologs record data page modification to ensure crash recovery and transaction persistence. 2.undologs records the original data value and supports transaction rollback and MVCC.

What are the key metrics to look for in an EXPLAIN output (type, key, rows, Extra)?Apr 15, 2025 am 12:15 AM

Key metrics for EXPLAIN commands include type, key, rows, and Extra. 1) The type reflects the access type of the query. The higher the value, the higher the efficiency, such as const is better than ALL. 2) The key displays the index used, and NULL indicates no index. 3) rows estimates the number of scanned rows, affecting query performance. 4) Extra provides additional information, such as Usingfilesort prompts that it needs to be optimized.

What is the Using temporary status in EXPLAIN and how to avoid it?Apr 15, 2025 am 12:14 AM

Usingtemporary indicates that the need to create temporary tables in MySQL queries, which are commonly found in ORDERBY using DISTINCT, GROUPBY, or non-indexed columns. You can avoid the occurrence of indexes and rewrite queries and improve query performance. Specifically, when Usingtemporary appears in EXPLAIN output, it means that MySQL needs to create temporary tables to handle queries. This usually occurs when: 1) deduplication or grouping when using DISTINCT or GROUPBY; 2) sort when ORDERBY contains non-index columns; 3) use complex subquery or join operations. Optimization methods include: 1) ORDERBY and GROUPB

Describe the different SQL transaction isolation levels (Read Uncommitted, Read Committed, Repeatable Read, Serializable) and their implications in MySQL/InnoDB.Apr 15, 2025 am 12:11 AM

MySQL/InnoDB supports four transaction isolation levels: ReadUncommitted, ReadCommitted, RepeatableRead and Serializable. 1.ReadUncommitted allows reading of uncommitted data, which may cause dirty reading. 2. ReadCommitted avoids dirty reading, but non-repeatable reading may occur. 3.RepeatableRead is the default level, avoiding dirty reading and non-repeatable reading, but phantom reading may occur. 4. Serializable avoids all concurrency problems but reduces concurrency. Choosing the appropriate isolation level requires balancing data consistency and performance requirements.

MySQL vs. Other Databases: Comparing the OptionsApr 15, 2025 am 12:08 AM

MySQL is suitable for web applications and content management systems and is popular for its open source, high performance and ease of use. 1) Compared with PostgreSQL, MySQL performs better in simple queries and high concurrent read operations. 2) Compared with Oracle, MySQL is more popular among small and medium-sized enterprises because of its open source and low cost. 3) Compared with Microsoft SQL Server, MySQL is more suitable for cross-platform applications. 4) Unlike MongoDB, MySQL is more suitable for structured data and transaction processing.

How does MySQL index cardinality affect query performance?Apr 14, 2025 am 12:18 AM

MySQL index cardinality has a significant impact on query performance: 1. High cardinality index can more effectively narrow the data range and improve query efficiency; 2. Low cardinality index may lead to full table scanning and reduce query performance; 3. In joint index, high cardinality sequences should be placed in front to optimize query.

MySQL: Resources and Tutorials for New UsersApr 14, 2025 am 12:16 AM

The MySQL learning path includes basic knowledge, core concepts, usage examples, and optimization techniques. 1) Understand basic concepts such as tables, rows, columns, and SQL queries. 2) Learn the definition, working principles and advantages of MySQL. 3) Master basic CRUD operations and advanced usage, such as indexes and stored procedures. 4) Familiar with common error debugging and performance optimization suggestions, such as rational use of indexes and optimization queries. Through these steps, you will have a full grasp of the use and optimization of MySQL.

Real-World MySQL: Examples and Use CasesApr 14, 2025 am 12:15 AM

MySQL's real-world applications include basic database design and complex query optimization. 1) Basic usage: used to store and manage user data, such as inserting, querying, updating and deleting user information. 2) Advanced usage: Handle complex business logic, such as order and inventory management of e-commerce platforms. 3) Performance optimization: Improve performance by rationally using indexes, partition tables and query caches.

See all articles

Hot AI Tools

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress images for free

Clothoff.io

AI clothes remover

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)

4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

R.E.P.O. Best Graphic Settings

4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

Assassin's Creed Shadows: Seashell Riddle Solution

2 weeks agoByDDD

R.E.P.O. How to Fix Audio if You Can't Hear Anyone

4 weeks agoBy尊渡假赌尊渡假赌尊渡假赌

WWE 2K25: How To Unlock Everything In MyRise

1 months agoBy尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Zend Studio 13.0.1

Powerful PHP integrated development environment

DVWA

Damn Vulnerable Web App (DVWA) is a PHP/MySQL web application that is very vulnerable. Its main goals are to be an aid for security professionals to test their skills and tools in a legal environment, to help web developers better understand the process of securing web applications, and to help teachers/students teach/learn in a classroom environment Web application security. The goal of DVWA is to practice some of the most common web vulnerabilities through a simple and straightforward interface, with varying degrees of difficulty. Please note that this software