php - MySQL 语法错误 : ORDER BY clause is not in GROUP BY

Question

我有一个查询，我想在 shipping_date 之前订购，但我收到此错误:

QueryException in Connection.php line 770:
    SQLSTATE[42000]: Syntax error or access violation: 1055 Expression 1 of 
    ORDER BY clause is not in GROUP BY clause and contains nonaggregated 
    column 'device.devices.shipping_date' which is not functionally 
    dependent on columns in GROUP BY clause; this is incompatible with 
    sql_mode=only_full_group_by (SQL: select count(*) as device, 
    DATE_FORMAT(shipping_date,"%M %Y") as year from `devices` where 
    `shipping_date` is not null and `internal_use` = 0 group by `year` order by `shipping_date` asc)

我的代码:

$sold_devices = Device::selectRaw('count(*) as device, DATE_FORMAT(shipping_date,"%M %Y") as year')
                 ->whereNotNull('shipping_date')
                 ->where('internal_use', '=', 0)
                 ->groupBy('year')
                 ->orderBy('shipping_date', 'asc')
                 ->pluck('device', 'year');

有什么帮助吗？

谢谢

Answer 1

您必须在 group by 中指定确切的 select 列:在您的情况下

->groupBy('DATE_FORMAT(shipping_date,"%M %Y")')
->orderBy('DATE_FORMAT(shipping_date,"%M %Y")', 'asc')

一般来说，您不能在where、group by 和order by 子句中使用列别名。

编辑

要更改排序标准，您可以使用月份的数值代替其名称:

->groupBy('DATE_FORMAT(shipping_date,"%M %Y")')
->orderBy('DATE_FORMAT(shipping_date,"%Y%c")', 'asc')