count rows from another join table

Question

i have created two tables. one episode table and one season table and i wanna know how can i select and display episodes counts for each season or save them in season.episodes_count what is the right way or query for doing this?

try {
    $stmt = $db->prepare("SELECT * FROM `season` WHERE season.show_id = '" . $show_id . "' ORDER BY season_number DESC");
    // how to select episodes_count?
    $stmt->execute();
    $seasons = $stmt->fetchAll(PDO::FETCH_ASSOC);
} catch (PDOException $e) {
    echo $e;
}

Answer 1

Hi don't have your DB to test against and this is not tested but somehitng like this:

    $stmt = $db->prepare("
    SELECT se.id,
    se.season_number,
    COUNT(es.id) AS episodes_count
    FROM season AS se
    LEFT JOIN espisode AS es ON (se.id = es.season_id)
    WHERE se.show_id = $show_id
    ORDER BY se.season_number DESC
    ");