2.點(diǎn)擊下載后，在下載頁(yè)面選擇操作系統(tǒng)

3.點(diǎn)擊下載rpm文件，拿到這個(gè)下載鏈接

4.移除mariadb數(shù)據(jù)庫(kù)

yum remove mariadb-libs.x86_64

5.進(jìn)入到/tmp目錄使用wget下載

wget https://repo.mysql.com//mysql80-community-release-el7-2.noarch.rpm

6.安裝mysql的源

yum localinstall mysql80-community-release-el7-2.noarch.rpm

7.通過(guò)查找命令找到社區(qū)版的安裝文件

yum search mysql

8.安裝mysql

yum install mysql-community-server.x86_64

9.開(kāi)啟mysql服務(wù)

systemctl start mysqld

10.查看myqsl的默認(rèn)密碼

cat /var/log/mysqld.log

2019-03-27T03:05:34.627566Z 0 [System] [MY-013169] [Server] /usr/sbin/mysqld (mysqld 8.0.15) initializing of server in progress as process 29114

2019-03-27T03:05:38.631106Z 5 [Note] [MY-010454] [Server] A temporary password is generated for root@localhost: I+w=67d;+ES8

2019-03-27T03:05:40.427422Z 0 [System] [MY-013170] [Server] /usr/sbin/mysqld (mysqld 8.0.15) initializing of server has completed

2019-03-27T03:05:42.371036Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.15) starting as process 29161

2019-03-27T03:05:43.074650Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed.

2019-03-27T03:05:43.117341Z 0 [System] [MY-010931] [Server] /usr/sbin/mysqld: ready for connections. Version: '8.0.15' socket: '/var/lib/mysql/mysql.sock' port: 3306 MySQL Community Server - GPL.

2019-03-27T03:05:43.166968Z 0 [System] [MY-011323] [Server] X Plugin ready for connections. Socket: '/var/run/mysqld/mysqlx.sock' bind-address: '::' port: 33060

11.使用密碼進(jìn)行登陸mysql

mysql -uroot -p

12.修改設(shè)置密碼的驗(yàn)證規(guī)則

set global validate_password.policy=0;

set global validate_password.length=1;

13.修改root的密碼

alter user 'root'@'localhost' identified by '新密碼';

14.退出后，使用新密碼登陸。查看數(shù)據(jù)庫(kù)。

mysql -u root -p

mysql> show databases;

+--------------------+

| Database |

+--------------------+

| information_schema |

| mysql |

| performance_schema |

| sys |

+--------------------+

4 rows in set (0.00 sec)

總結(jié)

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