How to Select from SubQuery using distinct in Laravels - laravel

Question

I have a table name "warga" , the table consist:
id (primary key), no_card, name, description. The no_card is a group from some id.
Then, I will count the description based on no_card.
This is the SQL code :
-SQL code :
SELECT description, COUNT(description) as cnt
FROM ( SELECT distinct no_card, description FROM `warga` ) as t
GROUP by description ;
the SQL already show the data that I need, then in the laravels :
$data = DB::table('warga')->selectRaw('description , COUNT(description ) AS CountData')
->select('no_card', 'description')->distinct()->from('warga')
->groupby('description')
->get();
When I run the program, the alis table CountData is not detected,
Do you have suggestion to fix it?
Thank you,

Answer 1

You can use subquery tables as closures or passing them as builder objects.
DB::table(Closure, alias) or DB::query()->from(Closure, alias)
DB::table(Builder, alias) or DB::query()->from(Closure, alias)
$subquery = DB::table('warga')
->select('no_card', 'description')
->distinct();
$results = DB::table($subquery, 't')
->select('description')
->selectRaw('count(description) as cnt')
->groupBy('description')
->get();
$results = DB::table(function ($query) {
$query->from('warga')
->select('no_card', 'description')
->distinct();
}, 't')
->select('description')
->selectRaw('count(description) as cnt')
->groupBy('description')
->get();
You can even make the query look very SQL-like if you want.
$query = DB::query()
->select('description')
->selectRaw('count(description) as cnt')
->from(function ($sub) {
$sub->select('no_card', 'description')
->distinct();
}, 't')
->groupBy('description')
->get();