MySQL issue: Table 'data_dictionary.CHARACTER_SETS' doesn't exist

问题

Recently I have updated from MySQL 5.1 to 5.5 and after few weeks the following error message was displayed each time I access the phpMyAdmin application:

1146 - Table 'data_dictionary.CHARACTER_SETS' doesn't exist

I have investigated the issue to the point where I have been forced to downgrade the MySQL service to 5.0.95 and then to upgrade the service once again to 5.1.

None of the above outlines steps however resolved the issue and the error message in questions still persist . This error disables me to access any database/table via the phpMyAdmin interface.

The error logs on the server are not providing additional information at all. The checked logs were:

-> mysql.err log -> the cpanel error log

Any help will be highly appreciated

回答1:

Run sudo mysql_upgrade -u root -p --force

Then restart mysql

i.e. sudo service mysql restart or sudo service mysqld restart depending on the version and distribution you have

You need to logout of phpMyAdmin then login for the change to take effect.

回答2:

I was facing the same problem. It can be resolved by reconfiguring phpMyAdmin.

 sudo dpkg-reconfigure phpmyadmin

Close phpMyAdmin page and

来源：https://stackoverflow.com/questions/19121383/mysql-issue-table-data-dictionary-character-sets-doesnt-exist