query("SELECT COUNT(*) FROM pharmacy_sales"); $total_rows = $count_stmt->fetchColumn(); $total_pages = ceil($total_rows / $limit); // Fetch Sales $sql = "SELECT s.*, p.name as patient_name FROM pharmacy_sales s LEFT JOIN patients p ON s.patient_id = p.id ORDER BY s.created_at DESC LIMIT $limit OFFSET $offset"; $stmt = $db->query($sql); $sales = $stmt->fetchAll(PDO::FETCH_ASSOC); ?>