Server version: 5.5.31-MariaDB-log MariaDB Server Copyright (c) 2000, 2013, Oracle, Monty Program Ab and others. Type 'help;' or '\h' for help. Type '\c' to clear the current input statement. MariaDB [(none)]> select engine,sum(data_length)/1024/1024 as DATA_MB,sum(INDEX_LENGTH)/1024/1024 as INDEX_MB from information_schema.tables group by engine; +--------------------+---------------+---------------+ | engine | DATA_MB | INDEX_MB | +--------------------+---------------+---------------+ | NULL | NULL | NULL | | Aria | 0.07031250 | 0.07031250 | | CSV | 0.00000000 | 0.00000000 | | InnoDB | 2572.07812500 | 1899.90625000 | | MEMORY | 0.00000000 | 0.00000000 | | MyISAM | 110.98039818 | 0.09179688 | | PERFORMANCE_SCHEMA | 0.00000000 | 0.00000000 | +--------------------+---------------+---------------+