Laravel 5.6.12 前的版本: $query=DB::table(DB::raw("({$subQuery->toSql()}) as sub"))->where('tableE2.field_1',5)->orderBy('sub.field_3','desc')->take(20);$results=DB::select($query->toSql(),array_merge($subQuery->getBindings(),$query->getBindings()))->get(); 参考:...
/** * Combines SQL and its bindings * * @param \Eloquent $query * @return string */publicstaticfunctiongetEloquentSqlWithBindings($query){returnvsprintf(str_replace('?','%s',$query->toSql()),collect($query->getBindings())->map(function($binding){returnis_numeric($binding)?$binding:"...
GroupBy操作会将结果集按照指定的列进行分组,这可能导致OrderBy操作失效。因为OrderBy操作是在整个结果集上进行排序,而不是在每个分组内部进行排序。如果需要在GroupBy之后进行排序,可以使用Raw SQL语句或者子查询来实现。 另一个可能的原因是在GroupBy之前使用了其他操作,例如Join或Where,这些操作可能会改变结果集的顺序,...
echo "SQL: {$query->sql}\n"; echo "Bindings: " . implode(', ', $query->bindings) . "\n"; echo "Time: {$query->time} ms\n"; }); // 执行查询 $users = DB::table('users')->where('status', 'active')->get(); 使用"DB::listen()"方法时,每次执行查询时都会输出SQL语句、...
记录SQL 查询语句 // 开启 log DB::connection()->enableQueryLog(); // 获取已执行的查询数组 DB::getQueryLog();URL1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 URL::full(); URL::current(); URL::previous(); URL::to('foo/bar', $parameters, $secure); URL::action('NewsController...
Now, as you've seen, arbitrary (raw) queries are done in the query builder using theDB::select()method. Let's look at theselect()method inIlluminate\Database\Connectionto see if it has any way to bind our parameters: publicfunctionselect($query,$bindings=array()){return$this->run($qu...
首先，需要说明的是laravel提供了三种数据操作方式：raw SQL, query builder和Eloquent ORM。在表现形式上...
$orders = DB::table('orders') ->selectRaw('price * ? as price_with_tax', [1.0825]) ->get();whereRaw / orWhereRawThe whereRaw and orWhereRaw methods can be used to inject a raw "where" clause into your query. These methods accept an optional array of bindings as their second ...
dd(self::getEloquentSqlWithBindings($manUser)); 1. 2. 常见的做法:是不带绑定参数的 $manUser = User::where('id', $params['userId']); dd($manUser->toSql()); 1. 2. 参考:https://stackoverflow.com/questions/20045732/how-can-i-get-the-raw-query-string-from-laravels-query-builder-...
1DB::table('users') 2 ->whereExists(function($query) 3 { 4 $query->select(DB::raw(1)) 5 ->from('orders') 6 ->whereRaw('orders.user_id = users.id'); 7 }) 8 ->get();The query above will produce the following SQL: