MySql - 我删除了general_log表

时间:2012-09-03 11:36:26

标签: mysql mysql-error-1146

启用记录

我启用了记录using

SET GLOBAL log_output = 'TABLE';
SET GLOBAL general_log = 'ON';

所有已执行的查询都记录到mysql.general_log表。没关系。

尝试清除表格

然后表变大了,我想删除表中的所有记录。我执行了:

DELETE FROM general_log

但是这导致了一个错误,说我无法锁定日志表。因此,在禁用日志记录后删除了表:

SET GLOBAL general_log = 'OFF';
DROP TABLE general_log;

我希望再次启用日志记录会创建表,但我无法启用它。当我执行此操作时:

SET GLOBAL general_log = 'ON';

它给出了这个错误:

  

表'mysql.general_log'不存在

问题

  1. 如何再次创建mysql.general_log
  2. 如何安全无忧地清除mysql.general_log

6 个答案:

答案 0 :(得分:19)

重新创建:

USE mysql;

CREATE TABLE IF NOT EXISTS `general_log` (
  `event_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  `user_host` mediumtext NOT NULL,
  `thread_id` int(11) NOT NULL,
  `server_id` int(10) unsigned NOT NULL,
  `command_type` varchar(64) NOT NULL,
  `argument` mediumtext NOT NULL
) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT='General log';

清除表格:

TRUNCATE table mysql.general_log;

答案 1 :(得分:5)

1:

USE mysql;
CREATE TABLE `general_log` (
    `event_time` TIMESTAMP NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
    `user_host` MEDIUMTEXT NOT NULL,
    `thread_id` INT(11) NOT NULL,
    `server_id` INT(10) UNSIGNED NOT NULL,
    `command_type` VARCHAR(64) NOT NULL,
    `argument` MEDIUMTEXT NOT NULL
)
COMMENT='General log'
COLLATE='utf8_general_ci'
ENGINE=CSV;

2:

TRUNCATE mysql.general_log;

答案 2 :(得分:4)

这是更新版本,2012年答案不再适用:

CREATE TABLE mysql.general_log (
  `event_time` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
  `user_host` mediumtext NOT NULL,
  `thread_id` bigint(21) unsigned NOT NULL,
  `server_id` int(10) unsigned NOT NULL,
  `command_type` varchar(64) NOT NULL,
  `argument` mediumtext NOT NULL
) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT='General log'

答案 3 :(得分:3)

Ok, having first hand experience, this is what worked for me, if your table gets corrupted by any reason whatsoever, works with MySQL 5.6.11

var noCamel = str.replace(/(\B[A-Z])/g, ' $1');

答案 4 :(得分:3)

MySQL 5.7.18

我也放弃了mysql.general_log表,但其他答案对我没有帮助。

然后,我注意到有关表结构的错误导致它在MySQL 5.7.18上有点不同,所以我改变了一些字段,现在它可以正常工作。

如果有人需要它:

CREATE TABLE `general_log` (
  `event_time` timestamp(6) NOT NULL DEFAULT CURRENT_TIMESTAMP(6) ON UPDATE CURRENT_TIMESTAMP(6),
  `user_host` mediumtext NOT NULL,
  `thread_id` bigint(21) unsigned NOT NULL,
  `server_id` int(10) unsigned NOT NULL,
  `command_type` varchar(64) NOT NULL,
  `argument` mediumblob
) ENGINE=MyISAM DEFAULT CHARSET=utf8 COMMENT='General log'

答案 5 :(得分:0)

在MySQL 8.0.17中重新创建表:

use mysql;
CREATE TABLE general_log(
event_time timestamp(6) NOT NULL ,
user_host mediumtext NOT NULL,
thread_id bigint(21) unsigned NOT NULL,
server_id int unsigned NOT NULL,
command_type varchar(64) NOT NULL,
argument mediumblob NOT NULL
) ENGINE=CSV DEFAULT CHARSET=utf8 COMMENT='General log';