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1:查看版本
SELECT VERSION();
2：查看当前的日志保存方式
mysql> SHOW VARIABLES LIKE ‘%log_output%‘; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | log_output | TABLE | +---------------+-------+ 1 row in set (0.00 sec)
3：查看当前是否开启了general log
mysql> SHOW VARIABLES LIKE ‘%general_log%‘; +------------------+----------------------------+ | Variable_name | Value | +------------------+----------------------------+ | general_log | ON | | general_log_file | /var/run/mysqld/mysqld.log | +------------------+----------------------------+ 2 rows in set (0.00 sec)
4：关闭打开general log
mysql> SET GLOBAL GENERAL_LOG = ON; Query OK, 0 rows affected (0.00 sec) mysql> SET GLOBAL general_log_file =‘/tmp/general.log‘; Query OK, 0 rows affected (0.00 sec) mysql> SET GLOBAL GENERAL_LOG = OFF; Query OK, 0 rows affected (0.00 sec)
5：设置日志的输出格式
mysql> SHOW VARIABLES LIKE ‘%log_output%‘; +---------------+-------+ | Variable_name | Value | +---------------+-------+ | log_output | FILE | +---------------+-------+ 1 row in set (0.00 sec) mysql> SET GLOBAL log_output = ‘TABLE‘; Query OK, 0 rows affected (0.00 sec)
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原文地址：http://www.cnblogs.com/xiaoit/p/4512549.html
