So I'm trying to build a query to my SQL database from my backend (that's written in php with Laravel). I have a table in my database with a column that's titled "created_at", carrying values of the 'timestamp'-type. What I want to do is, when I send a query to my database, to only pick the rows (or instances, I guess) of my table that are created 30 days or less from the current date. I've tried experimenting back and forth with the 'where' keyword, but I couldn't get it to work as I wanted it to.
When I browse the table in my database, the dates are written in the format "YYYY-MM-DD hh:mm:ss" but I'm not sure how to compare them when they're in this format, and I don't know how to convert them whilst doing a query. I've looked at the whereBetween() method in Laravel but I didn't get that to work since I didn't know how I would compare them.
At the moment my query looks like this:
$topUser = DB::table('statistics')
->join('users', 'statistics.user_id', '=', 'users.id', 'inner')
->select('fname', 'user_id', DB::raw('sum(price) as total_collection'))
->where 'created_at' <= 30 days ago
It's basically that simple.
->whereDate('created_at', '<=', \Carbon\Carbon::now()->subDays(30));