Question

我的数据库查询在localhost上工作正常，但在实时服务器上显示错误。我在另一台服务器上使用相同的代码，它工作得很好。我正在使用Mysql（localhost版本5.5.54-0ubuntu0.14.04.1）和实时服务器（5.7.10-0ubuntu0.16.04.1）。

这是我得到的错误：

发生数据库错误

错误号码：1055

SELECT列表的表达式＃10不在GROUP BY子句中并且包含   nonaggregated列'imanage_asd.lut.log_text'不是   功能上依赖于GROUP BY子句中的列;这是   与sql_mode = only_full_group_by
不兼容

代码：

SELECT u.id, u.user, u.email, u.full_name, u.stat, 
GROUP_CONCAT(distinct(ar.role)) as roles, GROUP_CONCAT(distinct(g.title)) as group_names,
count(lug.user_id) as login_times, MAX(lug.created_at) as last_login, lut.log_text, 
lut.created_at as log_text_date, mobile FROM users as u LEFT JOIN 
group_users as gu ON gu.user_id = u.id LEFT JOIN groups as g ON g.id = gu.group_id 
LEFT JOIN user_roles as ur ON ur.user_id = u.id LEFT JOIN access_roles as ar ON 
ar.id = ur.role_id LEFT JOIN log_user_login as lug ON lug.user_id = u.id LEFT JOIN 
log_user_texts as lut ON lut.user_id = u.id AND lut.id = (SELECT l.id FROM log_user_texts l 
WHERE u.id = l.user_id ORDER BY l.id DESC LIMIT 1) WHERE u.id > 1 GROUP BY u.id

文件名：modules / admin / models / Users_model.php

行号：84

这是我的代码：

<?php
$query = $this->db->select('u.id, u.user, u.email, u.full_name, u.stat, GROUP_CONCAT(distinct(ar.role)) as roles, '
                        . 'GROUP_CONCAT(distinct(g.title)) as group_names, count(lug.user_id) as login_times, MAX(lug.created_at) as last_login, '
                        . 'lut.log_text, lut.created_at as log_text_date, mobile')
                ->join(static::T_GROUP_USERS . ' as gu', 'gu.user_id = u.id', 'left')
                ->join(static::T_GROUPS . ' as g', 'g.id = gu.group_id', 'left')
                ->join(static::T_USER_ROLES . ' as ur', 'ur.user_id = u.id', 'left')
                ->join(static::T_ROLES . ' as ar', 'ar.id = ur.role_id', 'left')
                ->join(static::T_LOG_USER_LOGIN . ' as lug', 'lug.user_id = u.id', 'left')
                ->join(static::T_LOG_USER_TEXTS . ' as lut', 'lut.user_id = u.id AND '
                        . 'lut.id = (SELECT l.id FROM log_user_texts l WHERE u.id = l.user_id ORDER BY l.id DESC LIMIT 1)', 'LEFT')
                ->where('u.id > 1')->group_by('u.id')->get(static::T_USERS . ' as u');

我会感激任何帮助。谢谢

Answer 1

我认为这是您问题的关键this is incompatible with sql_mode=only_full_group_by。

看看这个Disable ONLY_FULL_GROUP_BY。

可能是您的实时服务器上的数据库启用了此选项，但您的localhost可能已禁用。

Answer 2

快速解决方案可能是在select查询之前使用以下语句将sql_mode设置为none。

$this->db->query("SET sql_mode = ''");

$query = $this->db->select(...
...

显然，您应该通过在方便的时间调整连接来更新查询。

查询在localhost上工作但不在实时服务器上工作

2 个答案: