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  • Using Group By in Active Records

    @saikat.chakraborty
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    To use a GROUP BY clause to the SQL fired by the finder, you can specify the group method on the find query.

    For example, if you want to find a collection of dates the Orders were created on:

    Order.select("date(created_at) as ordered_date, sum(price) as total_price").group("date(created_at)")

    And this will give you a single Order object for each date where there are orders in the database.

    The sql query for this will be :

    SELECT date(created_at) as ordered_date, sum(price) as total_price
FROM orders
GROUP BY date(created_at)
    Group By in Active Records Active Records in rails
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