In this article, we will see laravel 8 left join query example. laravel left join eloquent returns all rows from the left table, even if there are no matches in the right table. The result is NULL from the right side. 

We will also see a query of laravel left join with groupBy(). If you would like to perform a "left join" or "right join" instead of an "inner join", use the leftJoin or rightJoin methods. These methods have the same signature as the join method.

For laravel left join query example we need the first argument passed to the leftJoin method is the name of the table you need to join to, while the remaining arguments specify the column constraints for the join. Left join query use in laravel 6, laravel 7, laravel 8.

So, let's see an example of left join in laravel 8 or laravel 8 join two tables.

 

In this example, we will create users table and a countries table. We will add the country_id  foreign key to the user's table. So, when I get users at that time we will get the country name from country_id using an inner join.

SELECT column_name(s)
FROM table1
LEFT JOIN table2
ON table1.column_name = table2.column_name;

 

 

select `users`.`id`, `users`.`name`, `users`.`email`, `countries`.`name` as `country_name` 
from `users` 
left join `countries` on `countries`.`id` = `users`.`country_id`

 

In this example, select data like id, name email, and country name but if you want all fields then you can use * to select all data.

public function index()
{
    $users = User::select('users.id', 'users.name', 'users.email', 'countries.name as country_name')
                    ->leftJoin('countries', 'countries.id', '=', 'users.country_id')
                    ->get();
}

 Using DB:

$users = DB::table('users')
            ->leftJoin('posts', 'users.id', '=', 'posts.user_id')
            ->get();

 

 

Now, We will give you an example of multiple where condition with an aggregate function.

User::leftJoin('posts', 'users.id', '=', 'posts.user_id')
       ->select('users.*')
       ->where('is_published', true)
       ->where('views','>=','100')
       ->get();

 

---

You might also like:

• Read Also: Laravel 8 Eloquent whereHas Condition
• Read Also: Import Export CSV/EXCEL File In Laravel
• Read Also: Change Date Format Using Carbon In Laravel
• Read Also: Laravel whereIn and whereNotIn Query Example