数据库学习之路（一）MySQL8安装

1、创建数据库管理用户

# useradd mysql

　　

2、创建数据和日志目录

# mkdir -p /data/mysql/data_3306 # mkdir -p /data/mysql/binlog_3306

3、下载安装包并安装

# cd /usr/local/
# wget  https://downloads.mysql.com/archives/get/p/23/file/mysql-8.0.16-linux-glibc2.12-x86_64.tar.xz
# tar xf mysql-8.0.16-linux-glibc2.12-x86_64.tar.xz 
# ln -s mysql-8.0.16-linux-glibc2.12-x86_64 mysql8
# yum install libaio libaio-devel -y

4、设置环境变量

# vim  /etc/profile
export PATH=/usr/local/mysql8/bin:$PATH
# source /etc/profile

5、权限设置

# chown -R mysql.mysql /data /usr/local/mysql*

6、初始化

# mysqld --initialize-insecure --user=mysql --basedir=/usr/local/mysql57 --datadir=/data/mysql/data_3306

7、启动数据库

# yum remove -y mariadb-libs
# more /etc/my.cnf
[mysqld]
user=mysql
basedir=/usr/local/mysql57
datadir=/data/mysql/data_3306
socket=/tmp/mysql.sock
server_id=1
log_bin=/data/mysql/binlog_3306
port=3306
[mysql]
socket=/tmp/mysql.sock
# cp /usr/local/mysql57/support-files/mysql.server /etc/init.d/mysqld
# chkconfig --add mysqld

8、登录数据库

# systemctl start mysqld
# mysql
mysql>