MySQL 5 多重 JOIN 语法在 MySQL 4 中不起作用

Question

当前的 SQL 查询在运行 MySQL 5.1.37 的 MAMP 1.8.4 上本地运行良好。

  SELECT 
    EL.log_actions, EL.log_date, EL.log_value, EL.log_type,    
    EA.admins_name, 
    EU.users_name, EU.users_matric
  FROM events_log EL
  JOIN events_users EU
    USING (users_id)          
  JOIN events_admins EA
    USING (admins_id)
  ORDER BY EL.log_id DESC
  LIMIT 0, 10

但是，当我将这个查询带到运行 MySQL 4.1.22-standard 的生产服务器上时，出现了以下错误(无论条目中是否有数据)。

A Database Error Occurred

Error Number: 1054

Unknown column 'sceclub_exclaim2007.EU.admins_id' in 'on clause'

SELECT EL.log_actions, EL.log_date, EL.log_value, EL.log_type, 
EA.admins_name, EU.users_name, EU.users_matric 
FROM events_log EL 
JOIN events_users EU USING (users_id) 
JOIN events_admins EA USING (admins_id) 
ORDER BY EL.log_id 
DESC LIMIT 0, 20

这是基于CodeIgniter 1.7.2，生产和开发都在运行同一套数据库。

数据库表

events_users: users_id users_name users_credits 
  users_matric users_redeem

events_admins: admins_id admins_email admins_name 
  admins_pass admins_date admins_modified admins_last_login 

events_attendance: attendance_id users_id events_id

events_events: events_id events_name events_venue events_time 
  events_desc events_pass 

events_log:log_id admins_id log_actions log_date log_value 
  users_id log_type

我是 MySQL 的新手，所以我不知道版本有任何差异或可能的原因，在此先感谢您!

尝试谷歌搜索 MySQL4 差异也无济于事。也尝试使用

  SELECT 
    EL.log_actions, EL.log_date, EL.log_value, EL.log_type,    
    EA.admins_name, 
    EU.users_name, EU.users_matric
  FROM events_log EL
  JOIN events_users EU
    where EL.users_id = EU.users_id
  JOIN events_admins EA
    USING EL.admins_id = EA.admins_id
  ORDER BY EL.log_id DESC
  LIMIT 0, 10

但是后来我在生产和开发中都报错了。

A Database Error Occurred

Error Number: 1064

You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'JOIN events_admins EA USING EL.admins_id = EA.admins_id ORDER BY' at line 8

SELECT EL.log_actions, EL.log_date, EL.log_value, EL.log_type, EA.admins_name, EU.users_name, EU.users_matric FROM events_log EL JOIN events_users EU where EL.users_id = EU.users_id JOIN events_admins EA USING EL.admins_id = EA.admins_id ORDER BY EL.log_id DESC LIMIT 0, 20

如果您能给我一些资源，让我可以阅读更多关于 MySQL 4 语法的信息，以达到与使用 MySQL 5 语法相同的效果，请告诉我。

再次感谢!

Answer 1

 SELECT 
    EL.log_actions, EL.log_date, EL.log_value, EL.log_type,    
    EA.admins_name, 
    EU.users_name, EU.users_matric
  FROM events_log AS EL
  JOIN events_users AS EU
    ON EL.users_id = EU.users_id
  JOIN events_admins EA
    ON EL.admins_id = EA.admins_id
  ORDER BY EL.log_id DESC
  LIMIT 0, 10