Laravel : Syntax error or access violation: 1055 Error 阿星小棧

 

 /**
     * @param $where
     * @return array
     */
    public static function getOrderTicketsByParamsWhere($where){
        if(empty($where)){
            return $where;
        }
        $orderTicket = OrderTicket::select(
            'th_order_ticket.id as order_ticket_id','th_order_ticket.order_num', 'th_order_ticket.sub_order_status',
            'th_order_ticket.ticket_id'
        )
            ->baseWhere($where)
            ->get()
            ->toArray();
        foreach ($orderTicket as $key=>$value){
            $value= OrderTicket::dealUrlForQuery($value);
            $orderTicket[$key] = $value;
        }
        return $orderTicket;
    }

上面這樣一段代碼, 測試服務器很好, 上線後報錯了.
Syntax error or access violation: 1055 Error : MySQL : isn't in GROUP BY................................

後來Google了一下說是sql_mode設置導致的問題, 修改 config/database.php這個配置 strict => false

 

'mysql' => [
    'driver' => 'mysql',
    'host' => env('DB_HOST', 'localhost'),
    'port' => env('DB_PORT', '3306'),
    'database' => env('DB_DATABASE', 'forge'),
    'username' => env('DB_USERNAME', 'forge'),
    'password' => env('DB_PASSWORD', ''),
    'charset' => 'utf8',
    'collation' => 'utf8_unicode_ci',
    'prefix' => '',
    'strict' => false,
    'engine' => null,
],

 

然後試了一下 果然問題解決了 ,然後仔細查閱了一下原因:

查詢mysql 1055錯誤碼發現問題爲在mysql的配置中如果設置了sql_mode包含
ONLY_FULL_GROUP_BY值得話，在進行查詢時需要將select的字段都包含在group by 中。
即 select x,y from xxx group by x,y
否則就會報錯

總結:

laravel 5.3 是默認開啓 mysql嚴格模式的.
mysql在嚴格模式下, 並且開啓了ONLY_FULL_GROUP_BY的情況下,
group by 的字段沒有出現在 select 的語句中會報錯.關閉了嚴格模式就不會報錯.

 

原文：https://segmentfault.com/a/1190000008383053