#启动mysql服务
[root@Centos 7 /etc/yum.repos.d]# systemctl start mariadb.service
#查看mysql服务状态
[root@Centos 7 /etc/yum.repos.d]# systemctl status mariadb.service
● mariadb.service - MariaDB database server
Loaded: loaded (/usr/lib/systemd/system/mariadb.service; disabled; vendor preset: disabled)
Active: active (running) since Sat 2022-10-22 23:00:55 CST; 8s ago
Process: 4299 ExecStartPost=/usr/libexec/mariadb-wait-ready $MAINPID (code=exited, status=0/SUCCESS)
Process: 4216 ExecStartPre=/usr/libexec/mariadb-prepare-db-dir %n (code=exited, status=0/SUCCESS)
Main PID: 4298 (mysqld_safe)
CGroup: /system.slice/mariadb.service
├─4298 /bin/sh /usr/bin/mysqld_safe --basedir=/usr
└─4463 /usr/libexec/mysqld --basedir=/usr --datadir=/var/lib/mysql --...
Oct 22 23:00:53 Centos 7 mariadb-prepare-db-dir[4216]: MySQL manual for more ins...
Oct 22 23:00:53 Centos 7 mariadb-prepare-db-dir[4216]: Please report any problem...
Oct 22 23:00:53 Centos 7 mariadb-prepare-db-dir[4216]: The latest information ab...
Oct 22 23:00:53 Centos 7 mariadb-prepare-db-dir[4216]: You can find additional i...
Oct 22 23:00:53 Centos 7 mariadb-prepare-db-dir[4216]: http://dev.mysql.com
Oct 22 23:00:53 Centos 7 mariadb-prepare-db-dir[4216]: Consider joining MariaDB'...
Oct 22 23:00:53 Centos 7 mariadb-prepare-db-dir[4216]: https://mariadb.org/get-i...
Oct 22 23:00:53 Centos 7 mysqld_safe[4298]: 221022 23:00:53 mysqld_safe Logging....
Oct 22 23:00:53 Centos 7 mysqld_safe[4298]: 221022 23:00:53 mysqld_safe Startin...l
Oct 22 23:00:55 Centos 7 systemd[1]: Started MariaDB database server.
Hint: Some lines were ellipsized, use -l to show in full.
#访问mysql服务
[root@Centos 7 /etc/yum.repos.d]# mysql
Welcome to the MariaDB monitor. Commands end with ; or \g.
Your MariaDB connection id is 2
Server version: 5.5.68-MariaDB MariaDB Server
Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
MariaDB [(none)]>
MariaDB [(none)]> show databases; #查看数据库
+--------------------+
| Database |
+--------------------+
| information_schema |
| mysql |
| performance_schema |
| test |
+--------------------+
4 rows in set (0.00 sec)
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