php - Laravel 不能在原始 SQL 查询中使用 'SET'？

Question

此查询在 mySQL 客户端中运行良好。但是当把它放在 Laravel 中时，它会返回

SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax;

代码如下:

$result = DB::connection('main')
->select("
    SET @acc :=0;
    SELECT a.date,@acc:=@acc+sum AS total_shops FROM (
        SELECT DATE(created_at) AS date, SUM(IF(created_at BETWEEN '2016-08-08 17:00:00' AND '2016-09-05 16:59:59',1,0)) AS sum
        FROM sales_product
        WHERE status = 1
        AND DATE(created_at) BETWEEN '2016-08-08 17:00:00' AND '2016-09-05 16:59:59'
        GROUP BY DATE(created_at) 
    ) AS a
");

然后我尝试删除“SET @acc :=0”。这一次，没有错误。但结果显示 total_shops 为 null。

结果:

array:15 [
    0 => {#198
        +"date": "2016-08-09"
        +"total_shops": null
    }
    1 => {#205
        +"date": "2016-08-10"
        +"total_shops": null
    }
    2 => {#204
        +"date": "2016-08-11"
        +"total_shops": null
    }
]

Answer 1

为我工作。

1. 创建语句
2. 在第二个原始查询中调用语句

DB::statement(DB::raw('set @rownum=0'));
$orders = DB::select( DB::raw("SELECT @rownum  := @rownum  + 1 AS rownum,id)); 

$data['pacitan']=$orders;