Starting MySQL (Percona Server). ERROR! The server quit without updating PID file – Percona
I recently experienced this error on a DigitalOcean node with 512MB ram. The full error…
It is pretty straightforward to check a MySQL / MariaDB table for a Primary Key, connect to the db server, login or open up your favorite MySQL client.
Without selecting any table, issue the following command:
Where <TABLE> is the name of the table you want to check.
The result returned should have a line show up with the Primary Key.
Note: If the result is empty, that means the table does not have a Primary Key.