Hi NameBiz,
some small basics:
Please read and bookmark:
If you would like to show files over the command line, please use
( for example ) :
ls -la /var/log/plesk/install
This will list all files in the folder "/var/log/plesk/install". If you would like more options for the command "ls", please use: "
ls --help"
Print files with cat to the command line, only listing lines with "error"
( for example ) :
cat /var/log/plesk/install/plesk_12.0.18_installation.log | grep error
Please use the command "
cat --help" for more options with "cat".
You might find it interesting that most of the linux commands have a "--help" option string. Please use it, if you would like to display the depending help - informations for a command.
Please use Google search, if you start with linux. Use for example "CentOS" "open" "log" ( yes, please with the quotes for each word, to limit your results ), or in your issue case, you might use: "CentOS" "error while trying to update upgrade SQL database from 11.6.1" ( yes! again with the quotes ^^ ).
Please be aware, that the more information you provide, the better will be any possible answer from the forum users to your issue. So if you add errors from the logs, or from the command line, it is more likely, that you might get help, here in the self-service - support - forum.