まとめ [mysql] default-character-set=utf8mb4 [mysqld] character_set_server=utf8mb4 collation-server=utf8mb4_bin [mysql] の default-character-set=utf8mb4 で変更される項目 character_set_client: latin1 -> utf8mb4 character_set_connection: latin1 -> utf8mb4 character_set_results: latin1 -> utf8mb4 [mysqld] の character_set_server=utf8mb4 で変更される項目 character_set_database: utf8mb4 -> utf8mb4 character_set_server: utf