查看mysql安裝情況
查看安裝情況：rpm -qa|grep -i mysql
mysql-connector-odbc-5.2.5-8.el7.x86_64
mysql-connector-java-5.1.25-3.el7.noarch
perl-DBD-MySQL-4.023-6.el7.x86_64
查看mysql服務運行情況
查看mysql服務運行情況：service mysqld status
如果正在運行則停掉服務：service mysqld stop
卸載mysql
卸載mysql：
命令： [root@oracle ~]# rpm -ev 包名
[root@bogon ~]# rpm -qa|grep -i mysql
mysql-connector-odbc-5.2.5-8.el7.x86_64
mysql-connector-java-5.1.25-3.el7.noarch
perl-DBD-MySQL-4.023-6.el7.x86_64
[root@bogon ~]# service mysqld status
Redirecting to /bin/systemctl status mysqld.service
Unit mysqld.service could not be found.
[root@bogon ~]# rpm -ev mysql-connector-odbc-5.2.5-8.el7.x86_64
軟件包準備中...
mysql-connector-odbc-5.2.5-8.el7.x86_64
[root@bogon ~]# rpm -ev mysql-connector-java-5.1.25-3.el7.noarch
軟件包準備中...
mysql-connector-java-1:5.1.25-3.el7.noarch
[root@bogon ~]# rpm -ev perl-DBD-MySQL-4.023-6.el7.x86_64
錯誤：依賴檢測失敗：
perl-DBD-MySQL 被 (已安裝) mariadb-server-1:5.5.60-1.el7_5.x86_64 需要
[root@bogon ~]# ^C
[root@bogon ~]# rpm -ev perl-DBD-MySQL-4.023-6.el7.x86_64
錯誤：依賴檢測失敗：
perl-DBD-MySQL 被 (已安裝) mariadb-server-1:5.5.60-1.el7_5.x86_64 需要
[root@bogon ~]# rpm -ev mariadb-server-1:5.5.60-1.el7_5.x86_64
軟件包準備中...
mariadb-server-1:5.5.60-1.el7_5.x86_64
警告：/var/log/mariadb/mariadb.log 已另存爲 /var/log/mariadb/mariadb.log.rpmsave
[root@bogon ~]#
[root@bogon ~]# rpm -ev perl-DBD-MySQL-4.023-6.el7.x86_64
軟件包準備中...
perl-DBD-MySQL-4.023-6.el7.x86_64
[root@bogon ~]# rpm -qa|grep -i mysql
[root@bogon ~]#
卸載依賴
perl-DBD-MySQL-4.023-6.el7.x86_64因爲存在依賴，所以先將依賴項卸載即可完成。
再次檢測已經卸載完畢。