Windows8.1 64 installed by mysql5.7.27

1、 Extract the installation package to the specified directory .

2、 Set the environment variable , stay path Item add mysql Of bin route . for example ：E:\database\mysql-5.7.27-winx64\bin;

3、 stay E:\database\mysql-5.7.27-winx64\bin Create under directory my.ini file , Fill in the following ：

[mysql]
# Set up mysql Client default character set 
default-character-set=utf8

[mysqld]
# Set up 7716 port 
port = 7716 
# Set up mysql Installation directory 
basedir=E:\database\mysql-5.7.27-winx64\bin
# Set up mysql Database data storage directory 
datadir=E:\database\mysql-5.7.27-winx64\bin\data
# Maximum connections allowed 
max_connections=1000
# The character set used by the server defaults to 8 Bit coded latin1 Character set 
character-set-server=utf8
# The default storage engine that will be used when creating a new table 
default-storage-engine=INNODB

4、 Initialize database .

Run with administrator privileges cmd, perform ：mysqld --initialize-insecure --user=mysql.

If there is a mistake , take data Delete the folder and execute again .

5、 Run with administrator privileges cmd, adopt cmd Order to enter mysql Of bin In the folder , Enter the command ：“mysqld –install”, appear “service successfully installed” Indicates successful installation .

6、 start-up MySql. Input “net start mysql” start-up MySQL.

7、 Sign in mysql. Input “mysql –u root -p” Sign in MySQL, Enter password... Appears , Just press enter .

8、 modify root password

mysql>use mysql;
mysql>update user set authentication_string = password(' New password '),password_last_changed=now() where user='root';mysql>use mysql;
mysql>flush privileges;

9、 Create a new user and assign permissions .

mysql>CREATE USER ' user name '@'%' IDENTIFIED BY ' password ';

mysql>GRANT ALL ON *.* TO ' user name '@'%';

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Forgotten password , Recharge password ：

edit my.cnf Allow blank password to log in

1 [[email protected] ~]# vi /etc/my.cnf
2 # stay [mysqld] Add a line next 
3 skip-grant-tables=1

Restart Mysql service

1 [[email protected] ~]# systemctl restart mysqld.service

Use Root Log in to the database 、 Use mysql database 、 modify root password 、 Exit database

1 [[email protected] ~]# mysql -u root
2 mysql> use mysql;
3 mysql> update user set authentication_string = password(' New password '),password_last_changed=now() where user='root';
4 mysql> flush privileges;

Open again my.cnf, take skip-grant-tables=1 Delete , Save and exit

1 [[email protected] ~]# vi /etc/my.cnf
2 # Delete skip-grant-tables=1

restart Mysql service

1 [[email protected] ~]# systemctl restart mysqld.service