mysql时间函数使用 MySQL中开启和使用通用查询日志的实例jrs看球网直播吧_低调看直播体育app软件下载_低调看体育直播(6/7)

+-----------+--------------+------------------------------------------------------------------------+
| thread_id | command_type | argument     |
+-----------+--------------+------------------------------------------------------------------------+
| 2 | Query | insert into tempdb.tb1 values(2,'robinson')  |
| 2 | Query | select thread_id,command_type,argument from mysql.general_log |
|  |  | where argument like ''robinson''   | 
+-----------+--------------+------------------------------------------------------------------------+

d、关闭通用查询日志

--可以通过设置系统变量general_log来关闭通用查询日志，此时日志输出设置为FILE,TABLEroot@localhost[(none)]> show variables like 'log_output';

+---------------+------------+
| Variable_name | Value |
+---------------+------------+
| log_output | FILE,TABLE |
+---------------+------------+

root@localhost[(none)]> set global general_log=off;

Query OK, 0 rows affected (0.01 sec)

root@localhost[(none)]> show variables like '%gener%';

+------------------+------------------+
| Variable_name | Value |
+------------------+------------------+
| general_log | OFF  |
| general_log_file | /tmp/suse11b.log |
+------------------+------------------+

root@localhost[(none)]> delete from tempdb.tb1 where id=2;

Query OK, 1 row affected (0.12 sec)

root@localhost[(none)]> commit;

Query OK, 0 rows affected (0.00 sec)

root@localhost[(none)]> system tail -n 1 /tmp/suse11b.log

141003 17:45:13 2 Query set global general_log=off

root@localhost[(none)]> select thread_id,command_type,argument from mysql.general_log
 -> where argument like '%delete%';

Empty set (0.00 sec)
--从上面的演示可知，尽管我们设置了log_output为FILE,TABLE，但general_log为OFF，通用日志无任何记录产生

root@localhost[(none)]> set global log_output=none;

Query OK, 0 rows affected (0.00 sec)

root@localhost[(none)]> set global general_log=1;

Query OK, 0 rows affected (0.00 sec)

root@localhost[(none)]> truncate table tempdb.tb1;