centos卸载数据库

❶ CentOS下如何完全卸载Mysql

这里主要解决使用rpm安装的卸载问题，安装方法见：CentOS安装mysql*.rpm提示conflicts with file from package的解决办法

虽然说这里的是使用rpm安装的卸载问题，我觉得使用yum方式安装的如果遇到相同?问题也一样适用。

查看已经安装的服务

rpm –qa|grep -i mysql
-i 作用是不区分大小写

可以看到有两个安装包

MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
MySQL-client-5.6.19-1.linux_glibc2.5.x86_64.rpm
删除这两个服务(去掉后缀)

rpm –e MySQL-client-5.6.19-1.linux_glibc2.5.x86_64
rpm -e MySQL-server-5.6.19-1.linux_glibc2.5.x86_64
查看残留的目录：

Whereis mysql
然后删除mysql目录：

rm –rf /usr/lib64/mysql
删除相关文件：

rm –rf /usr/my.cnf
rm -rf /root/.mysql_sercret
最关键的：

rm -rf /var/lib/mysql
如果这个目录如果不删除，再重新安装之后，密码还是之前的密码，不会重新初始化！
网上查了很久都没有文章提到这个，最后还是自己摸索找出来的。

卸载完成！

如果有帮助求采纳

❷ centos7怎样卸载mysql

这个你可以到手机设置，程序管理中卸载。
或者使用腾讯手机管家的软件管理功能进行卸载。
打开腾讯手机管家，点软件管理再点软件卸载，这时候就会出来你手机里所有软件的列表，找到这个卸载。

❸ centos 怎么卸载mysql

源码编译的，直接把安装目录删掉就行，一般都安装在/usr/local/mysql/里。rpm -qa只能看见rpm的安装包，两码事。

❹ 在centos怎么卸载oracle数据库

1.使用SQL*PLUS停止数据库
[oracle@OracleTest oracle]$ sqlplus /nolog
SQL> connect / as sysdba
SQL> shutdown [immediate]
SQL> exit
2.停止Listener
[oracle@OracleTest oracle]$ lsnrctl stop
3.停止HTTP服务
[root@OracleTest /root]# service httpd stop
4.用su或者重新登录到root(如想重新安装可以保留oracle用户，省得输入环境变量了)
5.将安装目录删除
[root@OracleTest /root]# rm -rf /u01/app/oracle/
6.将/usr/bin下的文件删除
[root@OracleTest /root]# rm /usr/local/bin/dbhome
[root@OracleTest /root]# rm /usr/local/bin/oraenv
[root@OracleTest /root]# rm /usr/local/bin/coraenv
7.将/etc/oratab删除
[root@OracleTest /root]# rm /etc/oratab
8.将/etc/oraInst.loc删除
[root@OracleTest /root]# rm /etc/oraInst.loc
9.将oracle用户删除(若要重新安装,可以不删除)
[root@OracleTest /root]# userdel –r oracle
10.将用户组删除(若要重新安装,可以不删除)
[root@OracleTest /root]# groupdel oinstall
[root@OracleTest /root]# groupdel dba
11.将启动服务删除
[root@OracleTest /root]# chkconfig --del dbora
到此为止重启后，你的Linux系统下的Oracle数据库已完全删除了！！！

❺ 腾讯云centos7怎么卸载mysql

yum安装的话可以用 yum remove (包名）这样的方式卸载软件包。
源码包安装的话可以进入对应目录直接删除所有文件就行。（需要预先停止进程）

❻ centos怎么卸载mysql

试试腾讯电脑管家干净快速
电脑管家将检测当前电脑上已安装的全部软件，您可以选择卸载不想要继续使用的软件，卸载不常用的软件有助于提升系统性能，增加磁盘可用空间。
在软件卸载面板中，选择不想要继续使用的软件，然后点击[卸载]按钮，可以完成卸载操作。
打开腾讯电脑管家——软件管理——卸载

❼ centos中怎么删除mysql数据库

查看已经安装的服务
rpm –qa|grep -i mysql
-i 作用是不区分大小写
yum remove mysql mysql-server mysql-libs compat-mysql51
rm -rf /var/lib/mysql
rm /etc/my.cnf
查看是否还有mysql软件：
rpm -qa|grep mysql
有的话继续删除
可以看到有两个安装包
MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
MySQL-client-5.6.19-1.linux_glibc2.5.x86_64.rpm

删除这两个服务(去掉后缀)
rpm –e MySQL-client-5.6.19-1.linux_glibc2.5.x86_64
rpm -e MySQL-server-5.6.19-1.linux_glibc2.5.x86_64
查看残留的目录：
whereis mysql

然后删除mysql目录：
rm –rf /usr/lib64/mysql

删除相关文件：
rm –rf /usr/my.cnf
rm -rf /root/.mysql_sercret
最关键的：
rm -rf /var/lib/mysql
如果这个目录如果不删除，再重新安装之后，密码还是之前的密码，不会重新初始化！
网上查了很久都没有文章提到这个，最后还是自己摸索找出来的。

卸载完成！怎么确定是不是真的卸载干净了呢？
一是看安装输出：
如果没有卸载干净，安装server时输入只有两行：
[root @localhost opt]# rpm -ivh MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
Preparing... ########################################### [100%]
1:MySQL-server ########################################### [100%]
卸载干净了安装输入如下：
[root @localhost opt]# rpm -ivh MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
Preparing... ########################################### [100%]
1:MySQL-server ########################################### [100%]
2014-09-23 07:22:43 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2014-09-23 07:22:43 26041 [Note] InnoDB: Using atomics to ref count buffer pool pages
2014-09-23 07:22:43 26041 [Note] InnoDB: The InnoDB memory heap is disabled
2014-09-23 07:22:43 26041 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2014-09-23 07:22:43 26041 [Note] InnoDB: Compressed tables use zlib 1.2.3
2014-09-23 07:22:43 26041 [Note] InnoDB: Using Linux native AIO
2014-09-23 07:22:43 26041 [Note] InnoDB: Using CPU crc32 instructions
2014-09-23 07:22:43 26041 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2014-09-23 07:22:43 26041 [Note] InnoDB: Completed initialization of buffer pool
2014-09-23 07:22:43 26041 [Note] InnoDB: The first specified data file ./ibdata1 did not exist: a new database to be created!
2014-09-23 07:22:43 26041 [Note] InnoDB: Setting file ./ibdata1 size to 12 MB
2014-09-23 07:22:43 26041 [Note] InnoDB: Database physically writes the file full: wait...
2014-09-23 07:22:43 26041 [Note] InnoDB: Setting log file ./ib_logfile101 size to 48 MB
2014-09-23 07:22:43 26041 [Note] InnoDB: Setting log file ./ib_logfile1 size to 48 MB
2014-09-23 07:22:45 26041 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0
2014-09-23 07:22:45 26041 [Warning] InnoDB: New log files created, LSN=45781
2014-09-23 07:22:45 26041 [Note] InnoDB: Doublewrite buffer not found: creating new
2014-09-23 07:22:45 26041 [Note] InnoDB: Doublewrite buffer created
2014-09-23 07:22:45 26041 [Note] InnoDB: 128 rollback segment(s) are active.
2014-09-23 07:22:45 26041 [Warning] InnoDB: Creating foreign key constraint system tables.
2014-09-23 07:22:45 26041 [Note] InnoDB: Foreign key constraint system tables created
2014-09-23 07:22:45 26041 [Note] InnoDB: Creating tablespace and datafile system tables.
2014-09-23 07:22:45 26041 [Note] InnoDB: Tablespace and datafile system tables created.
2014-09-23 07:22:45 26041 [Note] InnoDB: Waiting for purge to start
2014-09-23 07:22:45 26041 [Note] InnoDB: 5.6.19 started; log sequence number 0
A random root password has been set. You will find it in '/root/.mysql_secret'.
2014-09-23 07:22:46 26041 [Note] Binlog end
2014-09-23 07:22:46 26041 [Note] InnoDB: FTS optimize thread exiting.
2014-09-23 07:22:46 26041 [Note] InnoDB: Starting shutdown...
2014-09-23 07:22:48 26041 [Note] InnoDB: Shutdown completed; log sequence number 1625977
2014-09-23 07:22:48 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2014-09-23 07:22:48 26065 [Note] InnoDB: Using atomics to ref count buffer pool pages
2014-09-23 07:22:48 26065 [Note] InnoDB: The InnoDB memory heap is disabled
2014-09-23 07:22:48 26065 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2014-09-23 07:22:48 26065 [Note] InnoDB: Compressed tables use zlib 1.2.3
2014-09-23 07:22:48 26065 [Note] InnoDB: Using Linux native AIO
2014-09-23 07:22:48 26065 [Note] InnoDB: Using CPU crc32 instructions
2014-09-23 07:22:48 26065 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2014-09-23 07:22:48 26065 [Note] InnoDB: Completed initialization of buffer pool
2014-09-23 07:22:48 26065 [Note] InnoDB: Highest supported file format is Barracuda.
2014-09-23 07:22:48 26065 [Note] InnoDB: 128 rollback segment(s) are active.
2014-09-23 07:22:48 26065 [Note] InnoDB: Waiting for purge to start
2014-09-23 07:22:48 26065 [Note] InnoDB: 5.6.19 started; log sequence number 1625977
2014-09-23 07:22:48 26065 [Note] Binlog end
2014-09-23 07:22:48 26065 [Note] InnoDB: FTS optimize thread exiting.
2014-09-23 07:22:48 26065 [Note] InnoDB: Starting shutdown...
2014-09-23 07:22:50 26065 [Note] InnoDB: Shutdown completed; log sequence number 1625987
A RANDOM PASSWORD HAS BEEN SET FOR THE MySQL root USER !
You will find that password in '/root/.mysql_secret'.
You must change that password on your first connect,
no other statement but 'SET PASSWORD' will be accepted.
See the manual for the semantics of the 'password expired' flag.
Also, the account for the anonymous user has been removed.
In addition, you can run:
/usr/bin/mysql_secure_installation
which will also give you the option of removing the test database.
This is strongly recommended for proction servers.
See the manual for more instructions.
Please report any problems at http://bugs.mysql.com/
The latest information about MySQL is available on the web at
http://www.mysql.com
Support MySQL by buying support/licenses at http://shop.mysql.com
New default config file was created as /usr/my.cnf and
will be used by default by the server when you start it.
You may edit this file to change server settings
最后一段中提示了重要信息，很多人因为不喜欢读英文，导致接下来不知道怎么操作！
二就是安装完成，启动服务之后

使用命令：“mysql -uroot -p”输入你之前安装后设置的密码，看能不能登录，如果还可以登录，说明没有卸载干净！

❽ 如何卸载数据库centeros

系统：CentOS 6.5，MySQL：MySql 5.6

这里主要解决使用rpm安装的卸载问题，安装方法见：CentOS安装mysql*.rpm提示conflicts with file from package的解决办法

虽然说这里的是使用rpm安装的卸载问题，我觉得使用yum方式安装的如果遇到相同的问题也一样适用。

查看已经安装的服务
rpm –qa|grep -i mysql
-i 作用是不区分大小写
可以看到有两个安装包
MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
删除这两个服务(去掉后缀)
rpm –e MySQL-client-5.6.19-1.linux_glibc2.5.x86_64

查看残留的目录：

whereis mysql

然后删除mysql目录：

rm –rf /usr/lib64/mysql

删除相关文件：
rm –rf /usr/my.cnf
最关键的：

rm -rf /var/lib/mysql

如果这个目录如果不删除，再重新安装之后，密码还是之前的密码，不会重新初始化！

网上查了很久都没有文章提到这个，最后还是自己摸索找出来的。
卸载完成！怎么确定是不是真的卸载干净了呢？

一是看安装输出：

如果没有卸载干净，安装server时输入只有两行：

[root@localhost opt]# rpm -ivh MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
Preparing... ########################################### [100%]
1:MySQL-server ########################################### [100%]

卸载干净了安装输入如下：

[root@localhost opt]# rpm -ivh MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
Preparing... ########################################### [100%]
1:MySQL-server ########################################### [100%]
2014-09-23 07:22:43 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2014-09-23 07:22:43 26041 [Note] InnoDB: Using atomics to ref count buffer pool pages
2014-09-23 07:22:43 26041 [Note] InnoDB: The InnoDB memory heap is disabled
2014-09-23 07:22:43 26041 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2014-09-23 07:22:43 26041 [Note] InnoDB: Compressed tables use zlib 1.2.3
2014-09-23 07:22:43 26041 [Note] InnoDB: Using Linux native AIO
2014-09-23 07:22:43 26041 [Note] InnoDB: Using CPU crc32 instructions
2014-09-23 07:22:43 26041 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2014-09-23 07:22:43 26041 [Note] InnoDB: Completed initialization of buffer pool
2014-09-23 07:22:43 26041 [Note] InnoDB: The first specified data file ./ibdata1 did not exist: a new database to be created!
2014-09-23 07:22:43 26041 [Note] InnoDB: Setting file ./ibdata1 size to 12 MB
2014-09-23 07:22:43 26041 [Note] InnoDB: Database physically writes the file full: wait...
2014-09-23 07:22:43 26041 [Note] InnoDB: Setting log file ./ib_logfile101 size to 48 MB
2014-09-23 07:22:43 26041 [Note] InnoDB: Setting log file ./ib_logfile1 size to 48 MB
2014-09-23 07:22:45 26041 [Note] InnoDB: Renaming log file ./ib_logfile101 to ./ib_logfile0
2014-09-23 07:22:45 26041 [Warning] InnoDB: New log files created, LSN=45781
2014-09-23 07:22:45 26041 [Note] InnoDB: Doublewrite buffer not found: creating new
2014-09-23 07:22:45 26041 [Note] InnoDB: Doublewrite buffer created
2014-09-23 07:22:45 26041 [Note] InnoDB: 128 rollback segment(s) are active.
2014-09-23 07:22:45 26041 [Warning] InnoDB: Creating foreign key constraint system tables.
2014-09-23 07:22:45 26041 [Note] InnoDB: Foreign key constraint system tables created
2014-09-23 07:22:45 26041 [Note] InnoDB: Creating tablespace and datafile system tables.
2014-09-23 07:22:45 26041 [Note] InnoDB: Tablespace and datafile system tables created.
2014-09-23 07:22:45 26041 [Note] InnoDB: Waiting for purge to start
2014-09-23 07:22:45 26041 [Note] InnoDB: 5.6.19 started; log sequence number 0
A random root password has been set. You will find it in '/root/.mysql_secret'.
2014-09-23 07:22:46 26041 [Note] Binlog end
2014-09-23 07:22:46 26041 [Note] InnoDB: FTS optimize thread exiting.
2014-09-23 07:22:46 26041 [Note] InnoDB: Starting shutdown...
2014-09-23 07:22:48 26041 [Note] InnoDB: Shutdown completed; log sequence number 1625977

2014-09-23 07:22:48 0 [Warning] TIMESTAMP with implicit DEFAULT value is deprecated. Please use --explicit_defaults_for_timestamp server option (see documentation for more details).
2014-09-23 07:22:48 26065 [Note] InnoDB: Using atomics to ref count buffer pool pages
2014-09-23 07:22:48 26065 [Note] InnoDB: The InnoDB memory heap is disabled
2014-09-23 07:22:48 26065 [Note] InnoDB: Mutexes and rw_locks use GCC atomic builtins
2014-09-23 07:22:48 26065 [Note] InnoDB: Compressed tables use zlib 1.2.3
2014-09-23 07:22:48 26065 [Note] InnoDB: Using Linux native AIO
2014-09-23 07:22:48 26065 [Note] InnoDB: Using CPU crc32 instructions
2014-09-23 07:22:48 26065 [Note] InnoDB: Initializing buffer pool, size = 128.0M
2014-09-23 07:22:48 26065 [Note] InnoDB: Completed initialization of buffer pool
2014-09-23 07:22:48 26065 [Note] InnoDB: Highest supported file format is Barracuda.
2014-09-23 07:22:48 26065 [Note] InnoDB: 128 rollback segment(s) are active.
2014-09-23 07:22:48 26065 [Note] InnoDB: Waiting for purge to start
2014-09-23 07:22:48 26065 [Note] InnoDB: 5.6.19 started; log sequence number 1625977
2014-09-23 07:22:48 26065 [Note] Binlog end
2014-09-23 07:22:48 26065 [Note] InnoDB: FTS optimize thread exiting.
2014-09-23 07:22:48 26065 [Note] InnoDB: Starting shutdown...
2014-09-23 07:22:50 26065 [Note] InnoDB: Shutdown completed; log sequence number 1625987

A RANDOM PASSWORD HAS BEEN SET FOR THE MySQL root USER !
You will find that password in '/root/.mysql_secret'.

You must change that password on your first connect,
no other statement but 'SET PASSWORD' will be accepted.
See the manual for the semantics of the 'password expired' flag.

Also, the account for the anonymous user has been removed.

In addition, you can run:

/usr/bin/mysql_secure_installation

which will also give you the option of removing the test database.
This is strongly recommended for proction servers.

See the manual for more instructions.

Please report any problems at http://bugs.mysql.com/

The latest information about MySQL is available on the web at

http://www.mysql.com

Support MySQL by buying support/licenses at http://shop.mysql.com

New default config file was created as /usr/my.cnf and
will be used by default by the server when you start it.
You may edit this file to change server settings

最后一段中提示了重要信息，很多人因为不喜欢读英文，导致接下来不知道怎么操作！
二就是安装完成，启动服务之后

使用命令：“mysql -uroot -p”输入你之前安装后设置的密码，看能不能登录，如果还可以登录，说明没有卸载干净！

❾ CentOS 5.3 自带的mysql 能否卸载掉

卸载Mysql

[root@localhost ~]# rpm -qa|grep mysql

mod_auth_mysql-2.6.1-2.2

php-mysql-4.3.9-3.15

mysql-devel-4.1.20-1.RHEL4.1

mysql-4.1.20-1.RHEL4.1

mysqlclient10-3.23.58-4.RHEL4.1

libdbi-dbd-mysql-0.6.5-10.RHEL4.1

说明：rpm –qa | grep mysql 命令是为了把mysql相关的包都列出来，我上面的例子是Linux AS4默认安装mysql的rpm软件包列表，如果是别的Linux版本列出来的列表有可能会不一样，不过不用担心，不管是什么，卸载都从最下面的一个包开始，直到卸载掉第一个为止。

比如：在这个例子中，我们应该先卸载libdbi-dbd-mysql-0.6.5-10.RHEL4.1 方法如下：rpm –e -dbd-mysql-0.6.5-10.RHEL4.1

说明：rpm –e 是卸载rpm包的命令，后面是包名称，最后的版本号是不用打的，比如我们下一步卸载mysqlclient10-3.23.58-4.RHEL4.1包，方法如下：

rpm –e mysqlclient

❿ centos7怎么卸载mysql

下载腾讯电脑管家
打开腾讯电脑管家——工具箱——软件管理，找到卸载就可
腾讯电脑管家的软件卸载功能很强大，无论是，一些流氓软件，还是一些无法卸载或者没有卸载程序的都可以一键清理，很方便