How to completely remove MySQL from Debian?

apt-get accepts masks in input, so a complete removal is made simple:

sudo apt-get remove --purge mysql* :

 The following packages will be REMOVED: libmysqlclient-dev* libmysqlclient20* libmysqlcppconn-dev* libmysqlcppconn7v5* mysql-client* mysql-client-5.7* mysql-client-core-5.7* mysql-common* mysql-server* mysql-server-5.6* mysql-server-5.7* mysql-server-core-5.7* 0 upgraded, 0 newly installed, 12 to remove and 31 not upgraded. After this operation, 176 MB disk space will be freed. 

deletes everything related to mysql without any guessing with the indication of versions, etc.

in fact, you can delete so many other packages :-)

PS so you can remove too many packages , for example if you make

sudo apt-get remove my* , part of the output could be, for example:

 Package 'mythnetvision' is not installed, so not removed Package 'mythnews' is not installed, so not removed Package 'mythplugins' is not installed, so not removed Package 'mythtv' is not installed, so not removed 

so use the power of apt carefully.

We first write

  dpkg -l | grep -i mysql 

and write out all the unnecessary packages. Then with the help of apt-get remove имяпакета delete one by one or in a pack.

 apt-get remove mysql-server-5.0 

Instead of 5.0, your version ( apt-cache search mysql ).

 apt-get remove --purge %metapacketName% 

Alternatively, use aptitude or synaptic. It will be easier to remove packages.

 sudo aptitude purge mysql-common mysql-server mysql-common sudo aptitude install mysql-common mysql-server mysql-common 

Solves problems with the launch of MySQL. Verified by

We find out the version:

apt-cache search mysql

We delete the server:

apt-get remove mysql-server-5.5

We delete the client:

apt-get remove mysql-client-5.5