查看MYSQL中所有DB的大小

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select table_schema 'db_name' , sum(data_length) /1024/1024 'size(mb)' from information_schema.tables group by table_schema;

mysql> select table_schema 'stat' , sum(data_length) /1024/1024 'data(mb)', sum(index_length)/1024/1024 'index(mb)' from information_schema.tables group by table_schema;
+--------------------+-----------------+-----------------+
| stat               | data(mb)        | index(mb)       |
+--------------------+-----------------+-----------------+
| gu??_tmp           |     81.62409210 |      0.45410156 | 
| hive_tmp           |      0.27797318 |      0.07910156 | 
| hi??_wireless      |     62.82812500 |     31.01562500 | 
| information_schema |      0.00000000 |      0.00878906 | 
| mobile_production  |      0.52366257 |      0.45312500 | 
| mysql              |      0.54868793 |      0.10058594 | 
| performance_schema |      0.00000000 |      0.00000000 | 
| scheduler          |      8.54602623 |      4.39355469 | 
| slow_query_log     |     18.12500000 |      5.03125000 | 
| sta?               | 300910.57133389 | 185895.51367188 | 
| sta?_cms           |      1.32024574 |      0.11425781 | 
| sta?_freewap       |     27.45990467 |      8.10742188 | 
| stat_wap_pv        |      0.00343323 |      0.00195313 | 
| test               |      0.00012589 |      0.01269531 | 
+--------------------+-----------------+-----------------+

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