如何将 sql 转换为 Laravel 中的 QueryBuilder

Question

$old_records = DB::connection("mysql_old_s")->table('leads')
        ->select(DB::raw('count(*) as  source_count, source'))
        ->groupBy('source')
        ->get();
dd($old_records); // works right

这个查询是正确的。我想再添加一列，例如 id 或 created_at 到 select

我无法按照以下方式进行：

$old_records = DB::connection("mysql_old_s")->table('leads')
        ->select('id',DB::raw('count(*) as source_count, source'))
        ->groupBy('source')
        ->get();
dd($old_records); // it gives an error

它给我一个错误是：

SQLSTATE[42000]: Syntax error or access violation: 1055 Expression #1 of SELECT list is not in GROUP 
BY clause and contains nonaggregated column 'crmclini_crmv2.leads.id' which is not functionally 
dependent on columns in GROUP BY
clause; this is incompatible with sql_mode=only_full_group_by (SQL: select `id`, count(*) as 
source_count, source , id from `leads` group by `source`)

Answer 1

您应该将 select 列包含在您的 group by 子句中以按它们分组：

$old_records = DB::connection("mysql_old_s")->table('leads')
        ->select('id',DB::raw('count(*) as source_count, source'))
        ->groupBy(['id','source'])
        ->get();

第二个选项（我不推荐），你可以在config/database中禁用only_full_group_by选项。php:

'connections' => [ ...

'mysql' => [
...
    'strict' => false,
    ...

],
]

除非您有特殊条件，否则请按您select

的列进行查询分组

如何将 sql 转换为 Laravel 中的 QueryBuilder

how to convert the sql to QueryBuilder in Laravel

laravel

eloquent

laravel-query-builder

laravel-8