通过show variables like ‘general_log%’可以看查询日志

mysql> show variables like 'general_log%';
+------------------+-----------------------------+
| Variable_name    | Value                       |
+------------------+-----------------------------+
| general_log      | OFF                         |
| general_log_file | /data1/mysql/monitor-44.log |
+------------------+-----------------------------+
2 rows in set (0.00 sec)

mysql> set global general_log=ON;
Query OK, 0 rows affected (0.00 sec)

mysql> SHOW warnings;
Empty set (0.00 sec)

mysql> show variables like 'general_log%';
+------------------+-----------------------------+
| Variable_name    | Value                       |
+------------------+-----------------------------+
| general_log      | ON                          |
| general_log_file | /data1/mysql/monitor-44.log |
+------------------+-----------------------------+
2 rows in set (0.00 sec)