Plesk MySQL upgrade 5.1 to 5.5
When trying to restore a database backup taken on MariaDB 5.5.56 on a Plesk server running MySQL 5.1, i get error [root@xap ~]# mysql admin_dollsweb < admin_dollsweb.sql ERROR 1273 (HY000) at line 25: Unknown collation: 'utf8mb4_unicode_ci' [root@xap ~]# This is because MySQL 5.1 do not support utf8mb4_unicode_ci. Solution 1 You can find and replace utf8mb4_unicode_ci ... Read more