SQLSTATE[HY000]: 一般错误: 1111 无效使用组函数 (SQL: select GROUP_CONCAT(sum(documents.grand_total) SEPARATOR ",") as total答案

【问题标题】：SQLSTATE[HY000]: General error: 1111 Invalid use of group function (SQL: select GROUP_CONCAT(sum(documents.grand_total) SEPARATOR ",") as totalSQLSTATE[HY000]: 一般错误: 1111 无效使用组函数 (SQL: select GROUP_CONCAT(sum(documents.grand_total) SEPARATOR ",") as total
【发布时间】：2021-11-19 13:39:16
【问题描述】：

我收到此错误我想按每个月将每个月的总计与每个联系人组相加，但是当我运行查询时，它显示此错误 SQLSTATE[HY000]：一般错误：1111组函数使用无效（SQL：select GROUP_CONCAT(sum(documents.grand_total) SEPARATOR ",") as total

GROUP_CONCAT(documents.grand_total) as total 什么时候做我得到了所有的总数，但是这里分隔的每个联系人逗号的总和是我的 laravel 查询

$Months =  DB::table('documents')
            ->join('contacts', 'documents.contact_id', '=', 'contacts.id')
            ->selectRaw('GROUP_CONCAT(sum(documents.grand_total) SEPARATOR ",") as total 
            ,DATE_FORMAT(documents.due_date,"%M") as month ,
             GROUP_CONCAT(DISTINCT contacts.name SEPARATOR ",") as names')
            ->where(
                [
                    ['documents.company_id', '=', session('current_company')],
                    ['documents.document_type', '=', 1],
                    ['documents.status', '=', 2],
                ]
            )
            ->whereMonth('documents.created_at', '=', now())
            ->orWhereMonth('documents.created_at', '=', now()->subMonths(1))
            ->orWhereMonth('documents.created_at', '=', now()->subMonths(2))
            ->orWhereMonth('documents.created_at', '=', now()->subMonths(3))
            ->orWhereMonth('documents.created_at', '=', now()->subMonths(4))
            ->orWhereMonth('documents.created_at', '>', now())
            ->orWhereMonth('documents.created_at', '<', now()->subMonths(4))
            ->groupByRaw('DATE_FORMAT(documents.due_date,"%M")')
            ->orderBy('documents.due_date')
            ->get();

我现在得到的结果是所有documents.grand_total，只使用group_concat(documents.grand_total)是这样的

   Illuminate\Support\Collection {#1570 ▼
  #items: array:3 [▼
    0 => {#1560 ▼
      +"total": "53.51,53.51,53.51,53.51,53.51,53.51,53.51"
      +"month": "March"
      +"names": "Darrel Little"
    }
    1 => {#1565 ▼
      +"total": "584.78,106.56,40.36,820.46,49.17,96.56,90.53,51.36,44.87,158.76,673.24,203.26,51.36"
      +"month": "September"
      +"names": "Dane Cruickshank IV,Darrel Little,Dr. Enola Marks,Electa Harris"
    }
    2 => {#1561 ▼
      +"total": "53.51,108.58,108.58,108.58,353.35"
      +"month": "October"
      +"names": "Dane Cruickshank IV,Darrel Little,Dr. Wanda Hyatt MD"
    }
  ]
}

但我希望每个联系人的总和以逗号分隔，请帮助我，我在过去两天卡在此表格上，提前谢谢。

【问题讨论】：

只用 SUM 替换 GROUP_CONCAT(SUM(...))？
当我这样做时，它给出了上面提到的错误 1111 无效使用组函数（SQL：select group_concat（sum（documents.grand_total））

标签： mysql laravel group-by laravel-query-builder group-concat

【解决方案1】：

GROUP_CONCAT(SUM()) 总是显示 #1111 - 无效使用组函数错误.. 因此，您可以使用此示例来学习一种方法，而不是添加总和，

 SELECT customer_id, 
GROUP_CONCAT(product_id,':',quantity_sum SEPARATOR ' ; ' ) 
FROM 
(SELECT customer_id,product_id,sum(quantity) as quantity_sum 
from plus2_sale group by customer_id,product_id) a
 group by customer_id

所以在您的情况下，您的查询应该如下所示。我认为这会起作用

'select * , GROUP_CONCAT(sum_grand_total SEPARATOR ",") as total  from (select * ,sum(grand_total) as sum_grand_total from document) as document_details ...'

您可以使用this tutorial 了解有关 group_concat 的更多信息

【讨论】：