where name ='John'or(votes >100andtitle <>'Admin') 你还可以在查询构建器中使用聚合(如count、max、min、avg和sum): $users=DB::table('users')->count();$price=DB::table('orders')->max('price'); 有时,这样的构建器可能不够,或者你可能想要运行原始查询。你也可以将原始查询包装在 Fluent 中...
您还可以向 whereColumn 方法中传递一个数组。这些条件将使用 and 运算符联接:$users = DB::table('users') ->whereColumn([ ['first_name', '=', 'last_name'], ['updated_at', '>', 'created_at'], ])->get();逻辑分组有时您可能需要将括号内的几个 「where」 子句分组,以实现查询所需的...
You may also retrieve a total value for a given type by using theaggregateTotalmethod. For example, the following method would retrieve the total of all user sales instead of grouping them by user. $total=$this->aggregateTotal('user_sale','sum'); ...
规则, select的列都要在group中,或者本身是聚合列(SUM,AVG,MAX,MIN) 才行,其实这个配置目前个人感觉和distinct差不多的,所以去掉就好方法一: 查询mysql 1055...:对于GROUP BY聚合操作,如果在SELECT中的列,没有在GROUP BY中出现,那么这个SQL是不合法的,因为列不在GROUP BY从句中 NO_AUTO_VALUE_ON_ZERO:该值...
你可以使用 DB facade 提供的 table 方法开始查询。table 方法为指定的表返回一个链式查询构造器实例,允许在查询上链接更多约束,最后使用 get 方法检索查询结果:<?phpnamespace App\Http\Controllers;use App\Http\Controllers\Controller;use Illuminate\Support\Facades\DB;...
$orders = DB::table('orders') ->select('department', DB::raw('SUM(price) as total_sales')) ->groupBy('department') ->havingRaw('SUM(price) > 2500') ->get(); orderByRaworderByRaw 方法可用于设置原生字符串作为 order by 子句的值:...
$users = \App\User::distinct()->get();//selectdistinct * from`users1`$query = \App\User::select('name'); $users = $query->addSelect('age')->get();//select`name`,`age`from`users` ->selectRaw('department, SUM(price) as total_sales')->groupBy('department')->havingRaw('SUM(...
As long as you provide a valid SQL SELECT statement into the select option, you have a lot of power to display your columns however you like.Nested RelationshipsSometimes you might want to display a column value of a distantly-related model. In particular, when you have a series of belongs...
Laravel通过引用其他列获取列的SUM您可以使用selectRaw直接对查询执行计算，并执行sql语法。
->get(); If you would like to use a "where" style clause on your joins, you may use thewhereandorWheremethods on a join. Instead of comparing two columns, these methods will compare the column against a value: DB::table('users') ...