Get database results from frontend user's form input details - database

Question

I'm trying to use select statement if a laravel form has been filled. I have 2 tables "query" and "all". If a user fills a form it is saved in query but I also want it to select certain fields from table all and returns the answer.
When a user fills in a form its now saving in query.
$post = new query;
$post->name = $request->input('name');
$post->description = $request->input('description');
$post->email = auth()->user()->email;
$post->save();
session()->flash('notif', "Query has been submitted succesfully");
$check = check::select('all.*')
->where('name', '=', $post->name)
->get();

Answer 1

If I understand your problem, you need to get result from all table, where 'name' is $post->name. If so please check this:
$post = new query;
$post->name = $request->input('name');
$post->description = $request->input('description');
$post->email = auth()->user()->email;
$post->save();
session()->flash('notif', "Query has been submitted succesfully");
$check = DB::table('all')
->where('name', $post->name)
->get();
And please dont forget to place: use DB; on the top of your Controller

Answer 2

I can't understand what is check here in check::select(). But what I got from query is you want to select specific fields from table "all" after inserting the data in the table "query".
So you can do this to achieve what I understood.
$post = new query;
$post->name = $request->input('name');
$post->description = $request->input('description');
$post->email = auth()->user()->email;
$post->save();
// use any of the following
$check = all::where('name', $post->name)->get(); // SELECT *
$check = all::where('name', $post->name)->get(['field1', 'field2']); // SELECT 'specific'
session()->flash('notif', "Query has been submitted succesfully");