centos卸載資料庫

❶ CentOS下如何完全卸載Mysql

這里主要解決使用rpm安裝的卸載問題，安裝方法見：CentOS安裝mysql*.rpm提示conflicts with file from package的解決辦法

雖然說這里的是使用rpm安裝的卸載問題，我覺得使用yum方式安裝的如果遇到相同?問題也一樣適用。

查看已經安裝的服務

rpm –qa|grep -i mysql
-i 作用是不區分大小寫

可以看到有兩個安裝包

MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
MySQL-client-5.6.19-1.linux_glibc2.5.x86_64.rpm
刪除這兩個服務(去掉後綴)

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
查看殘留的目錄：

Whereis mysql
然後刪除mysql目錄：

rm –rf /usr/lib64/mysql
刪除相關文件：

rm –rf /usr/my.cnf
rm -rf /root/.mysql_sercret
最關鍵的：

rm -rf /var/lib/mysql
如果這個目錄如果不刪除，再重新安裝之後，密碼還是之前的密碼，不會重新初始化！
網上查了很久都沒有文章提到這個，最後還是自己摸索找出來的。

卸載完成！

如果有幫助求採納

❷ centos7怎樣卸載mysql

這個你可以到手機設置，程序管理中卸載。
或者使用騰訊手機管家的軟體管理功能進行卸載。
打開騰訊手機管家，點軟體管理再點軟體卸載，這時候就會出來你手機里所有軟體的列表，找到這個卸載。

❸ centos 怎麼卸載mysql

源碼編譯的，直接把安裝目錄刪掉就行，一般都安裝在/usr/local/mysql/里。rpm -qa只能看見rpm的安裝包，兩碼事。

❹ 在centos怎麼卸載oracle資料庫

1.使用SQL*PLUS停止資料庫
[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服務
[root@OracleTest /root]# service httpd stop
4.用su或者重新登錄到root(如想重新安裝可以保留oracle用戶，省得輸入環境變數了)
5.將安裝目錄刪除
[root@OracleTest /root]# rm -rf /u01/app/oracle/
6.將/usr/bin下的文件刪除
[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.將/etc/oratab刪除
[root@OracleTest /root]# rm /etc/oratab
8.將/etc/oraInst.loc刪除
[root@OracleTest /root]# rm /etc/oraInst.loc
9.將oracle用戶刪除(若要重新安裝,可以不刪除)
[root@OracleTest /root]# userdel –r oracle
10.將用戶組刪除(若要重新安裝,可以不刪除)
[root@OracleTest /root]# groupdel oinstall
[root@OracleTest /root]# groupdel dba
11.將啟動服務刪除
[root@OracleTest /root]# chkconfig --del dbora
到此為止重啟後，你的Linux系統下的Oracle資料庫已完全刪除了！！！

❺ 騰訊雲centos7怎麼卸載mysql

yum安裝的話可以用 yum remove (包名）這樣的方式卸載軟體包。
源碼包安裝的話可以進入對應目錄直接刪除所有文件就行。（需要預先停止進程）

❻ centos怎麼卸載mysql

試試騰訊電腦管家干凈快速
電腦管家將檢測當前電腦上已安裝的全部軟體，您可以選擇卸載不想要繼續使用的軟體，卸載不常用的軟體有助於提升系統性能，增加磁碟可用空間。
在軟體卸載面板中，選擇不想要繼續使用的軟體，然後點擊[卸載]按鈕，可以完成卸載操作。
打開騰訊電腦管家——軟體管理——卸載

❼ centos中怎麼刪除mysql資料庫

查看已經安裝的服務
rpm –qa|grep -i mysql
-i 作用是不區分大小寫
yum remove mysql mysql-server mysql-libs compat-mysql51
rm -rf /var/lib/mysql
rm /etc/my.cnf
查看是否還有mysql軟體：
rpm -qa|grep mysql
有的話繼續刪除
可以看到有兩個安裝包
MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
MySQL-client-5.6.19-1.linux_glibc2.5.x86_64.rpm

刪除這兩個服務(去掉後綴)
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
查看殘留的目錄：
whereis mysql

然後刪除mysql目錄：
rm –rf /usr/lib64/mysql

刪除相關文件：
rm –rf /usr/my.cnf
rm -rf /root/.mysql_sercret
最關鍵的：
rm -rf /var/lib/mysql
如果這個目錄如果不刪除，再重新安裝之後，密碼還是之前的密碼，不會重新初始化！
網上查了很久都沒有文章提到這個，最後還是自己摸索找出來的。

卸載完成！怎麼確定是不是真的卸載干凈了呢？
一是看安裝輸出：
如果沒有卸載干凈，安裝server時輸入只有兩行：
[root @localhost opt]# rpm -ivh MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
Preparing... ########################################### [100%]
1:MySQL-server ########################################### [100%]
卸載干凈了安裝輸入如下：
[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
最後一段中提示了重要信息，很多人因為不喜歡讀英文，導致接下來不知道怎麼操作！
二就是安裝完成，啟動服務之後

使用命令：「mysql -uroot -p」輸入你之前安裝後設置的密碼，看能不能登錄，如果還可以登錄，說明沒有卸載干凈！

❽ 如何卸載資料庫centeros

系統：CentOS 6.5，MySQL：MySql 5.6

這里主要解決使用rpm安裝的卸載問題，安裝方法見：CentOS安裝mysql*.rpm提示conflicts with file from package的解決辦法

雖然說這里的是使用rpm安裝的卸載問題，我覺得使用yum方式安裝的如果遇到相同的問題也一樣適用。

查看已經安裝的服務
rpm –qa|grep -i mysql
-i 作用是不區分大小寫
可以看到有兩個安裝包
MySQL-server-5.6.19-1.linux_glibc2.5.x86_64.rpm
刪除這兩個服務(去掉後綴)
rpm –e MySQL-client-5.6.19-1.linux_glibc2.5.x86_64

查看殘留的目錄：

whereis mysql

然後刪除mysql目錄：

rm –rf /usr/lib64/mysql

刪除相關文件：
rm –rf /usr/my.cnf
最關鍵的：

rm -rf /var/lib/mysql

如果這個目錄如果不刪除，再重新安裝之後，密碼還是之前的密碼，不會重新初始化！

網上查了很久都沒有文章提到這個，最後還是自己摸索找出來的。
卸載完成！怎麼確定是不是真的卸載干凈了呢？

一是看安裝輸出：

如果沒有卸載干凈，安裝server時輸入只有兩行：

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

卸載干凈了安裝輸入如下：

[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

最後一段中提示了重要信息，很多人因為不喜歡讀英文，導致接下來不知道怎麼操作！
二就是安裝完成，啟動服務之後

使用命令：「mysql -uroot -p」輸入你之前安裝後設置的密碼，看能不能登錄，如果還可以登錄，說明沒有卸載干凈！

❾ CentOS 5.3 自帶的mysql 能否卸載掉

卸載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

說明：rpm –qa | grep mysql 命令是為了把mysql相關的包都列出來，我上面的例子是Linux AS4默認安裝mysql的rpm軟體包列表，如果是別的Linux版本列出來的列表有可能會不一樣，不過不用擔心，不管是什麼，卸載都從最下面的一個包開始，直到卸載掉第一個為止。

比如：在這個例子中，我們應該先卸載libdbi-dbd-mysql-0.6.5-10.RHEL4.1 方法如下：rpm –e -dbd-mysql-0.6.5-10.RHEL4.1

說明：rpm –e 是卸載rpm包的命令，後面是包名稱，最後的版本號是不用打的，比如我們下一步卸載mysqlclient10-3.23.58-4.RHEL4.1包，方法如下：

rpm –e mysqlclient

❿ centos7怎麼卸載mysql

下載騰訊電腦管家
打開騰訊電腦管家——工具箱——軟體管理，找到卸載就可
騰訊電腦管家的軟體卸載功能很強大，無論是，一些流氓軟體，還是一些無法卸載或者沒有卸載程序的都可以一鍵清理，很方便