mysql安装5.7.20版本

安 装 命 令：mysqld install
初始化命令：mysqld –initialize

　　参考这个链接

http://blog.csdn.net/wlc57627451/article/details/79086756

　　

　　这次安装的sql用户名root

密码  123456

安装步骤操作

Microsoft Windows [版本 10.0.16299.125]
(c) 2017 Microsoft Corporation。保留所有权利。

C:\WINDOWS\system32>e:

E:\>cd E:\mysql-5.7.21-winx64\bin

E:\mysql-5.7.21-winx64\bin>mysqld install
Service successfully installed.

E:\mysql-5.7.21-winx64\bin>mysqld --initialize-insecure --user=mysql

E:\mysql-5.7.21-winx64\bin>mysqld -initialize

E:\mysql-5.7.21-winx64\bin>mysqld --initialize --user=mysql --console
2018-03-09T15:47:22.684200Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2018-03-09T15:47:22.686421Z 0 [ERROR] --initialize specified but the data directory has files in it. Aborting.
2018-03-09T15:47:22.687035Z 0 [ERROR] Aborting

E:\mysql-5.7.21-winx64\bin>mysqld --initialize --user=mysql --console
2018-03-09T15:49:52.752102Z 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2018-03-09T15:49:52.928303Z 0 [Warning] InnoDB: New log files created, LSN=45790
2018-03-09T15:49:52.966768Z 0 [Warning] InnoDB: Creating foreign key constraint system tables.
2018-03-09T15:49:53.047224Z 0 [Warning] No existing UUID has been found, so we assume that this is the first time that this server has been started. Generating a new UUID: 81e83fad-23b1-11e8-9b3b-005056c00001.
2018-03-09T15:49:53.052145Z 0 [Warning] Gtid table is not ready to be used. Table 'mysql.gtid_executed' cannot be opened.
2018-03-09T15:49:53.069496Z 1 [Note] A temporary password is generated for root@localhost: gPu,eWP1?>83

E:\mysql-5.7.21-winx64\bin>mysqld install
The service already exists!
The current server installed: E:\mysql-5.7.21-winx64\bin\mysqld MySQL

E:\mysql-5.7.21-winx64\bin>net start mysql
MySQL 服务正在启动 .
MySQL 服务已经启动成功。

E:\mysql-5.7.21-winx64\bin>mysql -uroot -p
Enter password: ************
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 2
Server version: 5.7.21

Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> ALTER USER 'root'@'localhost' IDENTIFIED BY '123456';
Query OK, 0 rows affected (0.00 sec)

mysql> exit
Bye

E:\mysql-5.7.21-winx64\bin>mysql -uroot -p
Enter password: ******
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 3
Server version: 5.7.21 MySQL Community Server (GPL)

Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql>

在centos中安装mysql5.7.17

参考连接
https://www.cnblogs.com/mujingyu/p/7689116.html

下载包
wget http://dev.mysql.com/get/Downloads/MySQL-5.7/mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz

解压文件夹移动到指定目录中
tar -zvxf mysql-5.7.17-linux-glibc2.5-x86_64.tar.gz -C /usr/local/mysql/

mkdir /usr/local/mysql

mv mysql-5.7.17-linux-glibc2.5-x86_64/* /usr/local/mysql/

/usr/local/mysql

增加用户
groupadd mysql;
useradd -r -g mysql mysql;

配置文件路径

[mysql]  
# 设置mysql客户端默认字符集
default-character-set=utf8

[mysqld]    
# 设置mysql的安装目录  
basedir=/usr/local/mysql  
# 设置mysql数据库的数据的存放目录  
datadir=/usr/local/mysql/data
default-storage-engine=INNODB
character_set_server=utf8

创建数据存储目录
mkdir /usr/local/mysql/data

chown -R mysql:mysql ./

初始化mysql

/usr/local/mysql/bin/mysqld --initialize --user=mysql --basedir=/usr/local/mysql/ --datadir=/usr/local/mysql/data/

2019-11-01T08:48:45.990408Z 1 [Note] A temporary password is generated for root@localhost: KmJ+YVmoH9K<

KmJ+YVmoH9K<

cp /usr/local/mysql/support-files/mysql.server /etc/rc.d/init.d/mysqld
chmod +x /etc/rc.d/init.d/mysqld
chkconfig --add mysqld;
chkconfig --list mysqld;

chkconfig --list | grep -i mysql

启动服务
service mysqld start

加入环境变量
export $PATH:/usr/local/mysql/bin

source /etc/profile

SET PASSWORD = PASSWORD('mysql');
grant all privileges on *.* to root@"%" identified by "mysql" with grant option;
flush privileges;