mysql utf8 conversion utf8mb4

mysql utf8 conversion to utf8mb4 (character set conversion, batch change to utf8mb4)

SELECT CONCAT(
               'ALTER TABLE ',
               TABLE_NAME,
               ' CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci;'
           )
FROM information_schema.`TABLES`
WHERE TABLE_SCHEMA = 'database_name';