你可能会遇到一组十六进制值，像这样(参数列):

mysql> select * from mysql.general_log LIMIT 1\G
*************************** 1. row ***************************
  event_time: 2023-01-27 13:37:20.950778
   user_host: root[root] @ localhost []
   thread_id: 1434
   server_id: 1
command_type: Query
    argument: 0x73656C656374202A2066726F6D207573657273
1 row in set (0.00 sec)

所以为了让它更具可读性，只需使用:

select a.*, convert(a.argument using utf8) from mysql.general_log a;

返回值是这样的:

mysql> select a.*, convert(a.argument using utf8) from mysql.general_log a LIMIT 1\G
*************************** 1. row ***************************
                    event_time: 2023-01-27 13:37:20.950778
                     user_host: root[root] @ localhost []
                     thread_id: 1434
                     server_id: 1
                  command_type: Query
                      argument: 0x73656C656374202A2066726F6D207573657273
convert(a.argument using utf8): select * from users
1 row in set, 1 warning (0.00 sec)

Ps:我在例子中使用了LIMIT 1，因为我的日志表太大了。

可以禁用或启用常规查询日志(记录所有查询)

SET GLOBAL general_log = 1 # (or 0 to disable)

我还想让MySQL日志文件看到查询，我已经解决了这个问题与下面的说明

进入/etc/mysql/mysql.conf.d 打开mysqld.cnf . conf文件

并启用下面的行

general_log_file        = /var/log/mysql/mysql.log
general_log             = 1

使用/etc/init.重启MySQLd / mysql重启 进入/var/log/mysql/，检查日志

在Windows上，你可以简单地转到

C:\wamp\bin\mysql\mysql5.1.53\my.ini

在my.ini中插入这一行

general_log_file = c:/wamp/logs/mysql_query_log.log

my.ini文件最终看起来像这样

...
...
...    
socket      = /tmp/mysql.sock
skip-locking
key_buffer = 16M
max_allowed_packet = 1M
table_cache = 64
sort_buffer_size = 512K
net_buffer_length = 8K
read_buffer_size = 256K
read_rnd_buffer_size = 512K
myisam_sort_buffer_size = 8M
basedir=c:/wamp/bin/mysql/mysql5.1.53
log = c:/wamp/logs/mysql_query_log.log        #dump query logs in this file
log-error=c:/wamp/logs/mysql.log
datadir=c:/wamp/bin/mysql/mysql5.1.53/data
...
...
...
...

这已经在一个评论中，但值得自己的回答: 无需编辑配置文件:在mysql中，以root身份执行

SET global general_log_file='/tmp/mysql.log'; 
SET global log_output = 'file';
SET global general_log = on;

之后别忘了关掉:

SET global general_log = off;

// To see global variable is enabled or not and location of query log    
SHOW VARIABLES like 'general%';
// Set query log on 
SET GLOBAL general_log = ON;