How to do good query? [closed] - mysql

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I was using data table template for frontend. It already have per page and pagination and search. So, how should I do for query. I did like this. I also wanna use search and paginate from template datatable. I don't wanna use build in laravel paginate and search.
public function index()
{
$users = User::all();
return view('users.list', compact('users'));
}

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Laravel- Auto Change Currency based on Country [closed]

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I have an ecommerce website, using Laravel and mysql. I need to auto change the currency based on the client country.
I already have the selection based currency change. I need to auto change the currency to the one of the user's country when visiting the website.
We have a laravel package called Torann/laravel-geoip for this purpose.
Add below snippet after finished installing this lib;
$geoData = geoip(request()->ip());
$currency = $geoData['currency'];
For more details, see this link; https://lyften.com/projects/laravel-geoip/doc/

Want to change prefix of values in mysql database [closed]

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I have millions of data in my database table customer. In that, I have the id_token attribute which has value like cus00001 format now I want to change it to ank00001.
What will be the query in rails or mysql to do it for all the data in the database?
You can use simple update query using REPLACE function:
UPDATE `table_name` SET `id_token` = REPLACE(`id_token`, 'ank', 'cus');

Displaying a particulat value from MYSQL database with react native [closed]

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how to retrieve a particular row from MySQL database and to use them in react native?
Okay, suppose you get an array of responses from the api call in backend (i.e php) , like [{"id":"1","cus_name":"k","cmpny_name":"k","gst_no":"k","mob_no":"k","user_id":"k","password":"k"}]
So suppose youget response in a variable eg
response = [{"id":"1","cus_name":"k","cmpny_name":"k","gst_no":"k","mob_no":"k","user_id":"k","password":"k"}]
Now to extract id of first element just do ,
response[0]['id'] , and this will give out the value 1. coz id is 1.
Hope it helps. feel free for doubts

Similar consult SQL using QueryBuilder or Eloquent from Laravel 4/5 [closed]

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I'd to know how make this consult using jquerybuilder or Eloquent in laravel:
$results = DB::select(DB::raw("SELECT * FROM visitors WHERE dni NOT IN (SELECT dni_user FROM register_solicitudes) "));
Thank's
Query Builder
$results = DB::table("visitors")
->whereNotIn("dni",function($q){
$q->select("dni_user")->from('register_solicitudes');
})->get();
Eloquent
$results = App\Visitor::whereNotIn("dni",function($q){
$q->select("dni_user")->from('register_solicitudes');
})->get();

MySQL full text search in Backand [closed]

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I'm using Backand as my backend as a service and I'm trying to find a way to add MySQL full-text search in my App.
Can anyone help me how to do it?
Thanks.
In Backand query you can use any MySQL syntax, so just add input parameter (MyText) as the text to be searched on and use this query:
SELECT * FROM articles
WHERE MATCH (title,body)
AGAINST ('{{MyText}}' WITH QUERY EXPANSION);