随着公司的业务越来越大，工作中需要对MySQL某一个数据库的表进行分表，为了做的更细致一点，在该数据库中，将所有表，按行数从到小排序：
实现方式：
mysql> use information_schema;
Reading table information for completion of table and column names
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Database changed
mysql> select table_name,table_rows from tables order by table_rows desc limit 30;
+----------------------+------------+
| table_name | table_rows |
+----------------------+------------+
| log | 144359031 |
| base_log | 49708134 |
| base_log_201708 | 15838445 |
| log_201706 | 11768358 |
| customer_log | 9625275 |
| log_201708 | 7856959 |
| base_log_201707 | 6270253 |
| debug_log | 5708789 |
| allocate_log | 5612445 |
| web_api_log | 5078173 |
| log_201707 | 4353787 |
| communication_log | 3069630 |
| base_log_201706 | 2751581 |
| log_201709 | 2028525 |
| sms_log | 1074787 |
| service_log | 977777 |
| fjs_behavior_log | 819606 |
| ocdc_customer | 811990 |
| base_log_201709 | 733253 |
| 5kcrm_fenpei_log | 524252 |
| customer_sale | 517155 |
| sys_crmdata_log | 500943 |
| 5kcrm_log | 471193 |
| phone_log | 470699 |
| 5kcrm_r_customer_log | 453022 |
| realestate_needs | 434770 |
| service_customer_log | 428040 |
| mail | 342659 |
| users | 331449 |
| phone_areas | 328089 |
+----------------------+------------+
30 rows in set (0.97 sec)