mysql mysql notes of service to build and create a simple database table

In the learning process need to build local mysql service, this section will build process record

1, download the official mysql service, https: //dev.mysql.com/downloads/mysql/ download the corresponding service version

2, from the following installation procedure: https: //jingyan.baidu.com/article/7e44095387e9a16fc1e2ef3b.html

1. initialize the database

 

1. Get 'mysql-8.0.18-winx64' folder, and placed directly under a letter unzip the downloaded archive "mysql-8.0.18-winx64.zip", for example: I have here renamed directly placed under the E disk, open the folder with the contents of the figure.
   
2. Creating the initial configuration file:

   Using Notepad, paste the field will look into Notepad, Notepad and rename my.ini.

   [client]

   default-character-set=utf8 

   [mysqld]

   port = 3306

   basedir = E: \\ mysql-8.0.18-winx64 (see their placement directory)

   max_connections=20

   character-set-server=utf8

   default-storage-engine=INNODB

   
3. The server performs initialization commands;

   ①win + r key, enter cmd, terminal open.

   ②cd to the bin directory, execute mysqld --initialize --console;

   After performing generation:

   ①root initial user and password;

   ② automatically generated data folder in the mysql-8.0.18-winx64 folder is the database folder.

   
   END

2. Set the server environment variables;

 

1. Each execution mysqld must turn the letter when you start a terminal, enter the long path, a lot of trouble.
   

2. Because mysql.exe (client) and mysqld.exe (server) and other executable files in the bin directory. Then put the bin directory to environment variable system.

   步骤（win10系统）：右键此电脑--属性-高级系统设置--高级--环境变量--Path--编辑--新建--E:\mysql-8.0.18-winx64\bin。

   然后确定每一个界面返回。

   
3. 3

   设置完成后需要重启终端，此时就可直接输入mysqld, 和mysqld命令了。

   但还没有搭建成功，还需要安装windows服务。

   
   END

3.启动和停止mysql服务

 

1.  

   如果是用installer安装的mysql会自动设置mysql服务，但压缩包安装的需要设置mysql服务。

   打开cmd，输入 "E:\mysql-8.0.18-winx64\bin\mysqld" --install

   目录根据自己的安装目录，注意有引号。

   若要移除mysql服务，在终端上输入"E:\mysql-8.0.18-winx64\bin\mysqld" --remove。

   
2.  

   安装成功后，可以启动Windows服务查看：

   win+r键，输入 services.msc 打开服务；可以看到有一项Mysql服务。但此时的服务没有启动。

   
3.  

   启动和停止mysql服：

   方法1：

   在cmd 输入 net start mysql,（启动服务）

   在cmd 输入 net stop mysql,（停止服务）

   方法2：

   打开windows 服务（如上步2所述), 可点击‘启动/停止’来操作（这里不再上图说明）。

   
4. 此时可以登录root用户，登录后需要更改初始密码，

   更改密码命令是：ALTER USER 'root'@'localhost' IDENTIFIED BY'密码'; 。

   至此，所有设置完成，可以使用并操作MySQL。

   

    

    Note Installation process "E: \ mysql-8.0.18-winx64 \ bin \ mysqld" --install possible error Install / Remove of the Service Denied !, administrator needs to run the cmd command window

    

   3. Create a database table

   

    

      Insert data: