MySQL download and configuration MySQL remote control

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install mysql5.7.23 Decompression version

solve mysql Unable to connect remotely ：

Authoring tool download

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download mysql Official website address  

MySQL :: Download MySQL Installer

2. Configuration initialization file my.ini
Create a txt file , Name is my, The file suffix is ini
Then copy the following code and put it in the file
（ The newly unzipped file does not my.ini file , You need to create your own ）
In addition to the installation directory and data storage directory, the following code needs to be modified , The rest need not be modified

[mysqld]
#  Set up 3306 port 
port=3306
#  Set up mysql Installation directory    ---------- Is your file path -------------
basedir=E:\mysql\mysql
#  Set up mysql Database data storage directory   --------- Is your file path data The folder is created by itself 
datadir=E:\mysql\mysql\data
#  Maximum connections allowed 
max_connections=200
#  Number of connection failures allowed .
max_connect_errors=10
#  The character set used by the server defaults to utf8mb4
character-set-server=utf8mb4
#  The default storage engine that will be used when creating a new table 
default-storage-engine=INNODB
#  By default “mysql_native_password” Plug in authentication 
#mysql_native_password
default_authentication_plugin=mysql_native_password
[mysql]
#  Set up mysql Client default character set 
default-character-set=utf8mb4
[client]
#  Set up mysql The default port when the client connects to the server 
port=3306
default-character-set=utf8mb4

Change the path after creation  

One . install mysql5.7.23 Decompression version

1. decompression   Environment variables enter Right click this computer -- attribute -- Find advanced settings

2. Configure environment variables ：  MYSQL_HOME D:\soft\mysql-5.7.23-winx64  It is best to configure in the system variable User variables cannot be used if you change users

3. edit path       %MYSQL_HOME%\bin

 
4. newly build my.ini   Put it in D:/soft/mysql-5.7.23-winx64 Under the folder
[mysqld]
port = 3306
basedir=D:/soft/mysql-5.7.23-winx64
datadir=D:/soft/mysql-5.7.23-winx64/data 
max_connections=200
character-set-server=utf8
default-storage-engine=INNODB
sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES
[mysql]
default-character-set=utf8

explain ：
sql_mode
NO_ENGINE_SUBSTITUTION：mysql stay create table You can specify engine Clause
STRICT_TRANS_TABLES： For a single insert operation , Whether inserting a single row or multiple rows , As long as the inserted data is incompatible with the field type , be insert Operation failed and rolled back
And mysql The closest thing is mariadb

cmd Command the administrator to run Get into mysql Of bin Catalog

Need to go to bin Catalog ： When inputting, you can press Tab Complete the input

5. install           mysqld -install 

 insecure During initialization, this parameter sets the default password to null  

6. initialization         mysqld --initialize-insecure --user=mysql     According to just my.ini File to initialize , Then it will produce a data Folder

 
7. start-up           net start mysql

  

8. Set the password       mysqladmin -u root -p password New password

9.Enter password: Old password     Directly enter , Because initialization directly puts mysql The password for is set to null  

The next two are settings   password And re-enter the password

10. Connect          mysql -uroot -p enter   then   Enter the password you set

Display database       show databases;

Display table           show tables;

Two 、 uninstall mysql

1 Out of Service       net stop mysql

2. Delete service       sc delete mysql       But the service is only disabled , Services still exist

3. Remove the service       mysqld remove         Need to go to bin Catalog , Could not find in the service mysql Yes

4. Delete registry information
    1）HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\Eventlog\Application\MySQL

    2）HKEY_LOCAL_MACHINE\SYSTEM\ControlSet002\Services\Eventlog\Application\MySQL

    3）HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Eventlog\Application\MySQL 

5. Delete mysql Installation directory

Open the registry   win Add R Input
regedit

Open the service
services.msc

Be careful 1： Protected shutdown , In particular, self-protection should be turned off , Otherwise, you can't uninstall

Be careful 2： Permission problems

3、 ... and ： solve mysql Unable to connect remotely ：

1. stay mysql Enter... On the server mysql The command line
2. Execute the following statement ： （ Note that the password needs to be modified according to your own configuration ）

% The percent sign means that the database can be operated remotely
   mysql> grant all privileges on *.*  to  [email protected]'%' identified by '123456';

   mysql> flush privileges;

3. You need to add a firewall that needs to remotely control your computer mysql The port number can be passed directly, otherwise the firewall will block access

Select port Direct electricity next step  

 tcp agreement       Port number 3306  This is mysql Default port number   And then click next

  Go straight to the next step

next step  

Give me a name You can get up at will

A rule will be automatically added after the configuration number  

Then you can go through ip Address to access the database on the computer where you configure the remote and set the rules

NAVIcat Download tool Can be connected to a variety of databases Decompress it and you can use it directly  

Authoring tool download

Navicat Premium 12.0.11_x64.zip - Blue clouds

Click Connect to select the database   Then enter the password to connect If you need to connect to a remote service ip Change the address