Laravel 6 join clause example tutorial

Today, We want to share with you Laravel 6 join clause example tutorial.In this post we will show you three tables join in laravel 6, hear for laravel 6 join 2 tables using model we will give you demo and example for implement.In this post, we will learn about Laravel – Inner Join with Multiple Conditions Example using Query Builder with an example.

Laravel 6 join clause example tutorial

There are the Following The simple About Laravel 6 Joins Example Tutorial Full Information With Example and source code.

As I will cover this Post with live Working example to develop Laravel 6 Eloquent Joins Example Tutorial, so the How to Join Multiple Table in Laravel 6 is used for this example is following below.

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Laravel 6 Joins Example Tutorial

Normally there are Laravel PHP Framework four types of join. such as Inner Join, Left Join, Right Join as well as Cross Join.here some Very Advanced Join as well as Sub-Query Join are possible using the laravel 6 Joins Example.

  • Inner Join Clause
  • Left Join / Right Join Clause
  • Cross Join Clause
  • Advanced Join Clauses
  • Sub-Query Joins

Laravel 6 Inner Join Clause

Laravel Inner Join clause selects all the records if the given column values matching in both MySQL tables.

$students = Student::join('teachers', 'students.teacher_id', '=', 'teachers.id')
       ->select('students.*')
       ->get();
dump($students);

Left Join Clause

The Laravel 6 LEFT JOIN clause returns all records from the left MySQL table, even if there are no matches in the right MySQL Database table, The result is NULL from the right side.

  Laravel 6 Inner Join Query Example - MySQL

$students = Student::leftJoin('teachers', 'students.teacher_id', '=', 'teachers.id')
       ->select('students.*')
       ->get();
dump($students);

Right Join Clause

$students = Student::rightJoin('teachers', 'students.teacher_id', '=', 'teachers.id')
       ->select('students.*')
       ->get();
dump($students);

Cross Join Clause in Laravel 6

The Laravel 6 CROSS JOIN joined every records from the first table (Table 1) with every records from the second table (Table 2).

$results = DB::table('staffs')
            ->crossJoin('contacts')
            ->get();
dump($results);

Advanced Join Clause

$results = DB::table('staffs')
        ->join('contacts', function ($join) {
            $join->on('staffs.id', '=', 'contacts.staff_id')
                 ->where('contacts.staff_id', '>', 5);
        })
        ->get();
v($results);

Sub-Query Join Clause

$results = DB::table('staffs')
->select('staff_id', DB::raw('MAX(created_at) as last_post_created_at'))
->where('is_published', true)->groupBy('staff_id');
dump($results);

In this Big Post, you have step by step Full Understanding laravel 6 joins like inner join, left join, right join, advanced join, cross join and sub-query join with Example.

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I hope you get an idea about Advanced Join Clauses,Cross Join Clause,Inner Join Clause,Left Join Clause,Right Join Clause,Sub-Query Joins.
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