In this tutorial I will give you 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 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 start example of left join in laravel 8.
In this example, we will create users table and countries table. I will add country_id foriegn key on users table. So when I get users at that time we will get country name from country_id using 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 fileds then you can use * for 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, I will give example about multiple where condition with aggregate function.
User::leftJoin('posts', 'users.id', '=', 'posts.user_id')
->select('users.*')
->where('is_published', true)
->where('views','>=','100')
->get();
You might also like :
In this tutorial we will learn about laravel 8 inner join query example. Also see how to join two tables in laravel 8. I...
Nov-24-2021
In the dynamic world of web development, form validation is a crucial aspect of creating a user-friendly and error-free...
Sep-25-2023
In this article, we will see crud with image upload in laravel 10 examples. Here, we will learn how to image upload with...
Mar-27-2023
In this article, we will explore the process of sending emails in Laravel, covering versions 6, 7, 8, 9, and 10. Email f...
Sep-02-2020