Check MySQL Database Size_MySQL

root@zwc 11:11:29>SELECT      -> ROUND(      -> SUM(data_length + index_length) / 1024 / 1024      -> ) TOTAL_MB,      -> ROUND(SUM(data_length) / 1024 / 1024) DATA_MB,      -> ROUND(      -> SUM(index_length) / 1024 / 1024      -> ) INDEX_MB      -> FROM      -> information_schema. TABLES;  +----------+---------+----------+  | TOTAL_MB | DATA_MB | INDEX_MB |  +----------+---------+----------+  |      944 |     466 |      478 |  +----------+---------+----------+  1 row in set (0.04 sec)  root@zwc 11:16:13>SELECT      -> TABLE_SCHEMA,      -> ENGINE,      -> ROUND(      -> SUM(data_length + index_length) / 1024 / 1024      -> ) TOTAL_MB,      -> ROUND(SUM(data_length) / 1024 / 1024) DATA_MB,      -> ROUND(      -> SUM(index_length) / 1024 / 1024      -> ) INDEX_MB,      -> count(*) "TABLES"      -> FROM      -> information_schema. TABLES      -> GROUP BY      -> TABLE_SCHEMA,      -> ENGINE      -> ORDER BY 3 DESC;  +--------------------+--------------------+----------+---------+----------+--------+  | TABLE_SCHEMA       | ENGINE             | TOTAL_MB | DATA_MB | INDEX_MB | TABLES |  +--------------------+--------------------+----------+---------+----------+--------+  | zwc                | MyISAM             |      485 |     191 |      294 |      1 |  | zwc                | InnoDB             |      456 |     273 |      183 |      1 |  | common_schema      | InnoDB             |        2 |       2 |        0 |     11 |  | mysql              | MyISAM             |        1 |       1 |        0 |     22 |  | information_schema | MyISAM             |        0 |       0 |        0 |      9 |  | mysql              | CSV                |        0 |       0 |        0 |      2 |  | information_schema | MEMORY             |        0 |       0 |        0 |     28 |  | common_schema      | MyISAM             |        0 |       0 |        0 |      7 |  | performance_schema | PERFORMANCE_SCHEMA |        0 |       0 |        0 |     17 |  | common_schema      | NULL               |     NULL |    NULL |     NULL |     62 |  +--------------------+--------------------+----------+---------+----------+--------+  10 rows in set (0.03 sec)  SELECTTABLE_SCHEMA,ENGINE,ROUND(SUM(data_length + index_length) / 1024 / 1024) TOTAL_MB,ROUND(SUM(data_length) / 1024 / 1024) DATA_MB,ROUND(SUM(index_length) / 1024 / 1024) INDEX_MB,count(*) "TABLES"FROMinformation_schema. TABLESGROUP BYTABLE_SCHEMA,ENGINEORDER BY 3 DESC;SELECTROUND(SUM(data_length + index_length) / 1024 / 1024) TOTAL_MB,ROUND(SUM(data_length) / 1024 / 1024) DATA_MB,ROUND(SUM(index_length) / 1024 / 1024) INDEX_MBFROMinformation_schema. TABLES;