How to execute raw queries with Laravel 5.1?

Question

So I have this tiny query to run on my DB and it works fine in MySQL Workbench. Basically, a SELECT with LEFT JOIN and UNION with LEFT JOIN again.

SELECT
            


        

Answer 1

    DB::statement("your query")

I used it for add index to column in migration

Answer 2

you can run raw query like this way too.

DB::table('setting_colleges')->first();

Answer 3

I found the solution in this topic and I code this:

$cards = DB::select("SELECT
        cards.id_card,
        cards.hash_card,
        cards.`table`,
        users.name,
        0 as total,
        cards.card_status,
        cards.created_at as last_update
    FROM cards
    LEFT JOIN users
    ON users.id_user = cards.id_user
    WHERE hash_card NOT IN ( SELECT orders.hash_card FROM orders )
    UNION
    SELECT
        cards.id_card,
        orders.hash_card,
        cards.`table`,
        users.name,
        sum(orders.quantity*orders.product_price) as total, 
        cards.card_status, 
        max(orders.created_at) last_update 
    FROM menu.orders
    LEFT JOIN cards
    ON cards.hash_card = orders.hash_card
    LEFT JOIN users
    ON users.id_user = cards.id_user
    GROUP BY hash_card
    ORDER BY id_card ASC");